Server for implementing image processing functions requested by a printing device

ABSTRACT

An image processing device is configured to provide a service relating to at least one of (1) the image data generated by the function of the image processing device and (2) image data representing the image to be formed, in response to a request from the image processing device. The image processing device may include a parameter designating unit, a service request unit, and a function implementation unit that is adapted to implement the function of the image processing device based on the service providing parameter designated by the parameter designating unit. The service providing device is provided with a service provision executing unit that is adapted to execute a process to provide the service to the image processing device after receiving the request from the service request unit provided to the image processing device.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.14/745,088, filed Jun. 19, 2015, which is a continuation of U.S.application Ser. No. 14/134,727, filed Dec. 19, 2013, now U.S. Pat. No.9,065,958 B2, issued Jun. 23, 2015, which is a divisional of prior U.S.application Ser. No. 13/336,740, filed Dec. 23, 2011, now U.S. Pat. No.8,619,306 B2, issued Dec. 31, 2013, which is a divisional of prior U.S.application Ser. No. 11/267,595, filed Nov. 7, 2005, now U.S. Pat. No.8,169,639 B2, issued May 1, 2012, which claims priority from JapanesePatent Applications No. 2004-322937 and No. 2004-322942, both filed onNov. 5, 2004, and No. 2005-144232, filed on May 17, 2005. The entiresubject matters of the applications are incorporated herein byreference.

TECHNICAL FIELD

Aspects of the invention relate to a communication device including aserver configured to provide services, and a client device that receivesthe services provided by the server. Aspects of the invention alsorelate to the server and the client device constituting a communicationsystem. Aspects of the invention also relate particularly to an imageprocessing system including an image processing device and a serverconstituting the image processing system.

BACKGROUND

Conventionally, a communication system configured as follows has beenknown. The communication system is configured with a server thattransmits data regarding services that the server can provide to aclient in response to a request for such data from the client. Then,data is transmitted from the client to the server that has beengenerated by the client based on the data regarding the services. Then,the server processes the transmitted data subject to the service,thereby providing the service.

An example of conventionally known techniques can be found at a web siteentitled “RSS Reader Rabbit Ticker” at <http://www.work-at.co.jp> (thesite exists as of Oct. 20, 2004). In this site, a client device isdisclosed that periodically transmits inquiries to the server for newsinformation. When there is news information, a client can access theserver to obtain the news information.

Another example can be found in Japanese Patent Provisional PublicationNo. HEI 9-238215 (hereinafter, referred to as '215 publication).According to the '215 publication, there are a digital copier and a hostcomputer, both connected to a network. A function that is notimplemented in the digital copier is implemented in the host computer.According to the '215 publication, control command codes and/or imagedata such as image density data is transmitted, through the network,from the digital copier to the host computer. Then, the host computeranalyzes the received control commands, and then applies imageprocessing to the received image data using a function designated by thereceived (and analyzed) command codes. The image data thus processed isthen transmitted from the host computer to the digital copier throughthe network. The digital copier then prints the thus received processedimage data. As a result, the digital copier utilizes the serviceprovided by the host computer for processing the image data.

Further, in the system disclosed in '215 publication, when new functionsare implemented in the host computer, information regarding the newfunctions is transmitted from the host computer to the digital copier.Then, the user can select, from among the new functions, only thefunctions that the user intends to register with the copier.

However, the system disclosed in '215 publication is not applicable toan environment where the services to be provided are increased/decreasedirregularly. That is, according to such a system, when a new function isadded to the host computer, it can be used only when the function isregistered with the digital copier. However, as with a server on theInternet, if a variety of services are frequently and irregularlyincreased/decreased, a registration operation to the digital copier isvery troublesome and the amount of such information is considerablylarge. Therefore, the technique disclosed in the '215 publication maynot be suitable for a system utilizing the Internet.

Incidentally, the service providing system as described above istypically configured such that the digital copier, or a client, which isconnected with a LAN (Local Area Network), and the LAN is connected to aWAN (Wide Area Network) such as the Internet through a router. Therouter is used for improving network traffic efficiency, and forstrengthening security of the system. In such a network employing arouter, unnecessary packets will not go out of the LAN, and unnecessarypackets will not come in the LAN from outside.

Generally, according to the above configuration, the LAN accepts datawhich is transmitted as a response to a request that has beentransmitted from a device inside the LAN. In such a network, it isimpossible to receive data which has been positively transmitted from aserver outside the LAN without a request from a device inside the LAN.That is, to any device of a network that is connected to the WAN (e.g.,the Internet) through a router, the server on the WAN cannot positivelyprovide a service.

Thus, when there is a service the server can provide to the clientconnected to the LAN, a system employing a polling communication may beusable. Such a system may be very effective particularly when newservices are constantly provided to the client.

However, in such a system, if the number of the services to be providedby the server increases and/or when the number of clients increases, theamount of data to be transmitted using the polling communication (theamount of inquiry data) increases, which increases the network traffic.Further, since access by the client increases, a relatively large burdenmay be applied to the server.

SUMMARY

Aspects of the invention provide a configuration of the network systemin which inquiries are received from the client service registrationsystem through which the user can submit a registration application forservices to be used by a peripheral device using a terminal devicehaving a sufficient user interface. In such aspects, it becomes possiblethat the peripheral device can also use the service provided by theserver.

Aspects of the invention also provide a communication system that isconfigured such that the client can transmit inquiry data to the servermore effectively.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

FIG. 1 is a block diagram showing a configuration of an image processingsystem according to aspects of a first embodiment of the invention.

FIG. 2 shows a configuration of an operation unit according to aspectsof the invention.

FIG. 3 shows a table providing a definition of each tag in the servicedefinition information according to aspects of the invention.

FIG. 4 shows a table indicating the definition of each tag in a serviceI/F information according to aspects of the invention.

FIG. 5 is a flowchart illustrating an MFP process according to aspectsof the first embodiment of the invention.

FIG. 6 is a flowchart illustrating a method selection window in adirectory server process according to aspects of the invention.

FIG. 7 shows a data configuration of service definition information.

FIGS. 8A-8C show examples of a service selection window according toaspects of the invention.

FIG. 9 shows another example of a service definition information dataaccording to aspects of the invention.

FIGS. 10 and 11 show a flowchart illustrating a session process executedby the MFP according to aspects of the invention.

FIG. 12 is a flowchart illustrating a UI job process executed by the MFPaccording to aspects of the invention.

FIG. 13 shows an example of service I/F information in which parametershave been set.

FIG. 14 shows an example of the service I/F information before theparameters have been set.

FIG. 15 is a flowchart illustrating the UI job executed by the MFPaccording to aspects of the invention.

FIG. 16 shows a data structure of transmission data.

FIG. 17 shows a data structure of specification data according toaspects of the first embodiment.

FIG. 18 shows tag definition according to aspects of the firstembodiment.

FIGS. 19A-19E show an example of parameter input windows according toaspects of the invention.

FIG. 20 shows a flowchart illustrating an input job executed by the MFPaccording to aspects of the invention.

FIG. 21 is a flowchart illustrating an output job executed by the MFPaccording to aspects of the invention.

FIGS. 22 and 23 show a flowchart illustrating a function server processexecuted by the function server according to aspects of the invention.

FIGS. 24 and 25 show a flowchart illustrating a session process executedby the function server according to aspects of the invention.

FIG. 26 shows a flowchart illustrating a UI job 1 executed by thefunction server according to aspects of the first embodiment of theinvention.

FIG. 27 shows a flowchart illustrating a UI job 2 executed by thefunction server according to aspects of the first embodiment of theinvention.

FIG. 28 shows a flowchart illustrating a service I/F informationgenerating process executed by the function server according to aspectsof the invention.

FIG. 29 shows a flowchart illustrating a scan job executed by thefunction server according to aspects of the invention.

FIG. 30 shows a flowchart illustrating a print job executed by thefunction server according to aspects of the invention.

FIG. 31 is a block diagram showing a configuration of an imageprocessing system according to a second illustrative embodiment.

FIG. 32 shows a flowchart illustrating an MFP process executed by theMFP according to the second embodiment.

FIG. 33 shows a flowchart illustrating an update process executed by theMFP according to the second embodiment.

FIG. 34 shows a flowchart illustrating a specification informationupdating process executed by the function server according to the secondembodiment.

FIG. 35 shows a data structure of the specification data according tothe second embodiment.

FIG. 36 shows a flowchart illustration the UI job executed by thefunction server according to the second embodiment.

FIG. 37 shows a flowchart illustrating an information management serverprocess executed by the function server according to the secondembodiment.

FIG. 38 is a block diagram of a system configuration of a communicationsystem according to a third illustrative embodiment.

FIGS. 39A and 39B show examples of service selection windows.

FIG. 40 shows a top item of service definition information according toaspects of the invention.

FIG. 41 shows an item lower than the top item of the service definitioninformation according to aspects of the invention.

FIGS. 42A-42C show examples of parameter input windows according toaspects of the invention.

FIG. 43 shows a data configuration of the service I/F informationaccording to aspects of the invention.

FIG. 44 shows another data configuration of the service I/F informationaccording to aspects of the invention.

FIG. 45 shows a flowchart illustrating a directory server processexecuted by a directory server according to a third embodiment.

FIG. 46 shows a flowchart illustrating a service reception processexecuted by the MFP according to the third embodiment.

FIG. 47 shows a flowchart illustrating a designated job startup processexecuted by the MFP according to the third embodiment.

FIG. 48 shows a flowchart illustrating a function server processexecuted by the function server according to the third embodiment.

FIG. 49 shows a flowchart illustrating a service control informationprocess executed by the function server according to the thirdembodiment.

FIG. 50 shows a flowchart illustrating a registration process executedby the function server according to the third embodiment.

FIG. 51A shows examples of request service ID management tables storedin the storage area.

FIG. 51B shows an example of a regular inquiry reply management tableaccording the third embodiment.

FIG. 52 shows an example of a regular inquiry management table accordingto the third embodiment.

FIG. 53 shows a flowchart illustrating a service side UI job executed bythe function server according to the third embodiment.

FIG. 54 shows a flowchart illustrating a UI job executed by the MFPaccording to the third embodiment.

FIG. 55 shows a flowchart illustrating a regular inquiry processexecuted by the MFP according to the third embodiment.

FIG. 56 shows a flowchart illustrating an integrated inquiry informationgenerating process executed by the MFP according to the thirdembodiment.

FIG. 57 shows an exemplary configuration of the integrated inquiryinformation according to the third embodiment.

FIG. 58 shows a flowchart illustrating a regular inquiry reply processexecuted by the function server according to the third embodiment.

FIG. 59 shows a flowchart illustrating an integrated reply informationgenerating process executed by the function server according to thethird embodiment.

FIG. 60 shows a flowchart illustrating a reply judgment process executedby the function server according to the third embodiment.

FIG. 61 shows an exemplary configuration of the integrated replyinformation.

FIG. 62 shows a flowchart illustrating a blog search process executed bythe function server according to the third embodiment.

FIG. 63 shows a flowchart illustrating a news information generatingprocess executed by the function server according to the thirdembodiment.

FIG. 64 shows a flowchart illustrating an integrated reply informationreceiving process executed by the MFP according to the third embodiment.

FIG. 65 shows a flowchart illustrating a regular service providingprocess executed by the function server according to the thirdembodiment.

FIG. 66 shows a service side print job executed by the function serveraccording to the third embodiment.

FIG. 67 shows a flowchart illustrating an output job executed by the MFPaccording to the third embodiment.

FIG. 68 shows an exemplary configuration of integrated inquiryinformation according to a modification of the third embodiment.

FIG. 69 shows an exemplary configuration of integrated reply informationaccording to the modification of the third embodiment.

DETAILED DESCRIPTION General Overview

It is noted that various connections are set forth between elements inthe following description. It is noted that these connections in generaland unless specified otherwise, may be direct or indirect and that thisspecification is not intended to be limiting in this respect. Aspects ofthe invention may be implemented in computer software as programsstorable on computer-readable media including but not limited to RAMs,ROMs, Flash memory, EEPROMs, CD-media, DVD-media, temporary storage,hard disk drives, floppy drives, permanent storage, and the like.

According to aspects of the invention, there is provided an imageprocessing system including an image processing device having at leastone of an image reading function to scan an image and generate imagedata representing the image and an image forming function to form animage represented by image data, and a service providing device adaptedto provide a service in response to a request from the image processingdevice, the service relating to at least one of the image data generatedby the function of the image processing device and image datarepresenting the image to be formed.

The image processing device may include a parameter designating unitthat is adapted to allow a user to designate a function parameter as aservice providing parameter, which is required for receiving a servicefrom the service providing device, among function parameters dependingon functions provided to the image processing device, a service requestunit that is adapted to request the service providing device for aservice, and a function implementation unit that is adapted to implementthe function of the image processing device based on the serviceproviding parameter designated by the parameter designating unit.

The service providing device may be provided with a service provisionexecuting unit that is adapted to execute a process to provide theservice to the image processing device after receiving the request fromthe service request unit.

The image processing device may be provided with a designation requestunit, which is adapted to request the image processing device todesignate the service providing parameter. Further, the parameterdesignating unit may be adapted to allow the user to designate thefunction parameter as the service providing parameter depending on thefunctions provided to the image processing device when the designationrequest unit of the service providing device requests the parameterdesignating unit to designate the service providing parameter.

The parameter designating unit may be adapted to display on a displayunit of the image processing device a parameter list that includesregistered function parameters concerning the functions provided to theimage processing device when the designation request unit of the serviceproviding device requests the parameter designating unit to designatethe function parameter, and allow the user to designate the functionparameter, which is to be the service providing parameter, among thefunction parameters registered in the parameter list.

The service providing device may be provided with a first listgenerating unit, which is adapted to generate the parameter list, thedesignation request unit being adapted to transmit a designation requestcommand for the service providing parameter to the image processingdevice along with the parameter list generated by the first listgenerating unit. Further, the parameter designating unit may be adaptedto display the parameter list on the display unit when the parameterdesignating unit receives the designation request command and theparameter list from the designation request unit, and to allow the userto designate the function parameter, which is to be the serviceproviding parameter, among the function parameters registered in theparameter list.

The service providing device is provided with a device-side settingnotification unit, which is adapted to notify the image processingsystem of a settable parameter, the service providing device is providedwith a service-end parameter storage unit, which is adapted to store ina storage unit the settable parameter corresponding to the imageprocessing device, the first list generating unit is adapted to generatea parameter list wherein the function parameter is designated based onthe settable parameter corresponding to the image processing device.

The service providing device may be provided with a first notificationrequest unit, which is adapted to request the image processing device toindicate a settable parameter that is to designate the functionparameter concerning the function provided to the image processingdevice, the settable parameter being designated to the function providedto the image processing device. Further, the first list generating unitmay be adapted to generate a parameter wherein the function parameter isregistered, the function parameter being designated by the settableparameter, which is indicated by the image processing system as beingrequested by the first notification request unit.

The image processing device may be provided with a device-side settingnotification unit, which is adapted to indicate the settable parameterto the service providing device, and the parameter designating unit maybe adapted to display the parameter list on the display unit when theparameter designating unit receives the designation request command andthe parameter list transmitted from the designation request unit.

The image processing system may further include an information managingunit, which is adapted to store the settable parameter in a storageunit, and at least one of the service providing devices. The serviceproviding device may be provided with a second notification requestunit, which is adapted to request the information managing unit toindicate the settable parameter of the image processing device. Further,the first list generating unit may be adapted to generate a parameterlist wherein the function parameter is registered, the functionparameter being designated by the settable parameter, which is indicatedby the image managing unit as being requested by the second notificationrequest unit, and the information managing unit may be provided with amanager-side setting notification unit, which is adapted to indicate thesettable parameter to the service providing device in accordance with arequest from the service providing device.

The image processing system may further include a device-side settingnotification unit, which is adapted to indicate a settable parametersettable to the image processing system to the information managingunit. The information managing unit may be provided with a manager-sideparameter storage unit, which is adapted to store the settable parametercorresponding to the image processing device, and the manager-sideparameter storage unit may be adapted to indicate the settable parameterstored in the manager-side parameter storage unit, the settableparameter corresponding to the image processing device to provide theservice to the service providing device in accordance with the requestfrom the service providing device.

The device-side setting notification unit may be adapted to indicate thesettable parameter in a predetermined timing after the image processingdevice is activated.

The device-side setting notification unit may be adapted to indicate thesettable parameter to the service providing device when the settableparameter settable to the image processing device is modified.

The device-side setting notification unit may be adapted to indicate thesettable parameter to the service providing device when the imageprocessing device is activated.

The image processing device may be provided with a second listgenerating unit, which is adapted to generate a parameter list thatincludes registered function parameters concerning the functionsprovided to the image processing device when the designation requestunit of the service providing device requests the image processingdevice to designate the service providing parameter. Further, theparameter designation system may be adapted to display the parameterlist generated by the second list generating unit on the display unit ofthe image processing device, and allow the user to designate thefunction parameter, which is to be the service providing parameter,among the function parameters registered in the parameter list.

The parameter list may be generated by registering the functionparameter concerning the functions provided to the image processingdevice to a format list. Further, the designation request unit may beadapted to transmit to the image processing device a designation requestcommand for the service providing parameter, along with the format listand listing information indicating a registering method of the functionparameter to the format list, and the second list generating unit may beadapted to generate the parameter list based on the format list and theregistered method when the second list generating unit receives thedesignation request command from the designation request unit.

The function parameter may be at least one of: (1) a parametercorresponding to the reading function, the function parameter beingadapted to include at least one of a resolution of the image formingfunction and a number of colors of the reading function; and (2) aparameter corresponding to the image forming function, the functionparameter being adapted to include at least one of a resolution of theimage forming function and a number of colors of the image formingfunction.

An image processing device, may include at least one of a readingfunction to capture an image and generate image data representing theimage and an image forming function to form an image represented byimage data. A parameter designation unit is adapted to allow a user todesignate a function parameter as a service providing parameter, whichis required for receiving a service from a server, the server providingthe service concerning at least one of image data generated by afunction provided to the image processing device and image datarepresenting an image to be formed, among function parameters dependingon functions provided to the image processing device. Further, a servicerequest unit may be adapted to request the server for the service, and afunction implementation unit is adapted to implement the function of theimage processing device based on the service providing parameterdesignated by the parameter designating unit when the service is beingprovided by the server being requested from the service request unit.

Aspects of the invention may provide a server, which may further includea first list generating unit, which is adapted to generate a parameterlist that includes registered function parameters concerning thefunctions provided to an image processing device, a designation requestunit, which is adapted to transmit a designation request command for aservice providing parameter to be designated to the image processingdevice along with the parameter list generated by the first listgenerating unit, the service providing parameter for receiving theservice from the server, and a service provision executing unit, whichis adapted to execute a process to provide the service to the imageprocessing device by implementing the function provided to the imageprocessing device based on the designation request command and theservice providing parameter designated by a user among the functionparameters in the parameter list.

Aspects of the invention may provide a computer program productcomprising computer-readable instructions that cause a computer systemto execute processes to function as an image processing system. Theimage processing system may include an image processing device having atleast one of a reading function to capture an image and generate imagedata representing the image and an image forming function to form animage represented by image data, and a service providing device adaptedto provide a service concerning at least one of the image data generatedby the function provided to the image processing device and the imagedata representing the image to be formed in response to a request fromthe image processing device. The image processing device may include aparameter designating unit that is adapted to allow a user to designatea function parameter as a service providing parameter for receiving theservice from the service providing device, among function parametersdepending on functions provided to the image processing device, aservice request unit that is adapted to request the service providingdevice for the service, and a function implementation unit that isadapted to implement the function of the image processing device basedon the service providing parameter designated by the parameterdesignating unit. The service providing device may be provided with aservice provision executing unit that is adapted to execute a process toprovide the service to the image processing device after receiving therequest from the service request unit.

According to aspects of the invention, there is provided a computerprogram product comprising computer-readable instructions that cause acomputer system to execute processes to function as an image processingdevice, which includes at least one of a reading function to capture animage and generate image data representing the image and an imageforming function to form an image represented by image data. A parameterdesignation unit may be adapted to allow a user to designate a functionparameter as a service providing parameter, which is required forreceiving a service from a server, the server providing the serviceconcerning at least one of image data generated by a function providedto the image processing device and image data representing an image tobe formed, among a plurality of function parameters depending onfunctions provided to the image processing device. Further, a servicerequest unit may be adapted to request the server for the service, and afunction implementation unit may be adapted to implement the function ofthe image processing device based on the service providing parameterdesignated by the parameter designating unit when the service is beingprovided by the server being requested from the service request unit.

Aspects of the invention may provide a computer program productcomprising computer-readable instructions that cause a computer systemto execute processes to function as a server. The server may include afirst list generating unit, which is adapted to generate a parameterlist that includes registered function parameters concerning thefunctions provided to a image processing device, a designation requestunit, which is adapted to transmit a designation request command for aservice providing parameter to be designated to the image processingdevice along with the parameter list generated by the first listgenerating unit, the service providing parameter for receiving theservice from the server, and a service provision executing unit, whichis adapted to execute a process to provide the service to the imageprocessing device by implementing the function provided to the imageprocessing device based on the designation request command and theservice providing parameter designated by a user among the functionparameters in the parameter list.

According to aspects of the invention, there is provided a communicationsystem, which includes a server that is adapted to provide types ofservices, and a client device that is adapted to have a communicationunit to communicate with the server and to receive the services providedby the server by communicating with the server. The server may beprovided with a receiving unit, which is adapted to receive an inquirysignal concerning the services transmitted from the client device, and areplying unit, which is adapted to generate reply information concerninga service when the receiving unit receives the inquiry signal and totransmit a response signal including reply information to the clientdevice, based on identifying information included in the inquiry signal.The client device may include a storage unit, in which informationindicating timing to inquire for each service to be received by theclient device among the services provided by the server is stored, atiming judging unit, which is adapted to judge when an appropriatetiming to transmit the inquiry signal for each service occurs based onthe information indicating the timing to inquire for each service, aninquiring unit, which is adapted to generate the inquiry signal, theinquiry signal storing the identifying information of the service thatis determined to be at the appropriate timing for transmitting theinquiry signal and to transmit the inquiry signal to the server, and areceiving unit adapted to receive the response signal transmitted fromthe server to the client device in response to the inquiry signal. Theinquiring unit may be adapted to generate converged inquiry informationas the identifying information of the service to be inquired whenservices are determined to be at the appropriate timing for transmittingthe inquiry signals, the converged inquiry information collectivelydescribing the identifying information of the services and to transmitthe inquiry signal including the converged inquiry signal to the server.

The storage unit may be adapted to store inquiry timing information,which indicates a next time to inquire for each service and immediateinquiry information, which indicates necessity of an immediate inquiry.The timing judging unit may include a first judging unit, which isadapted to judge when an inquiry time to inquire the server for eachservice based on the inquiry timing information, a second judging unit,which is adapted to judge whether the immediate inquiry is required foreach service provided from the server based on the immediate inquiryinformation, and a third judging unit, which is adapted to judge whethera predetermined extension period to transmit the inquiry signal to theserver has expired The communication system may determine theappropriate timing for transmitting the inquiry signal to the server forall the services provided by the server to the client device has notoccurred, in at least one of cases when the first judging unit hasjudged that no service is at the appropriate timing for transmitting theinquiry signal to the server, and when the second judging unit hasjudged that no service is required for the immediate inquiry and thepredetermined extension period is in process, and the communicationsystem may determine that the appropriate timing for transmitting theinquiry signal to the server for all the services provided by the serverto the client device has occurred, in at least one of cases when thefirst judging unit has judged that a service is at the appropriatetiming for transmitting the inquiry signal to the server and the secondjudging unit has judged that a service is required for the immediateinquiry, and the predetermined extension period to transmit the inquirysignal to the server is judged to be expired.

The storage unit may be adapted to store a value for a parameterindicating a content of the inquiry associated with the inquiry time ofthe service provided by the server, and the inquiring unit may beadapted to store the value of the parameter stored in the storage unitassociated with the identifying information of the service to beinquired along with the identifying information.

The inquiring unit may be adapted to generate the converged inquiryinformation in which identifying information of the services to beinquired is described based on the identifying information of a group ofservices, each of which includes an identical value for the parameterstored in the storage unit and the group of the identifying informationwith the identical value of the parameter associated with the value ofthe parameter is described, when services are determined to be at theappropriate timing for transmitting the inquiry signals.

The client device including input/output units excluding thecommunication unit may be adapted to receive the service from the serverby utilizing the communication unit and at least one of the types ofinput/output units, and the inquiring unit may be provided with a deviceoperation judging unit, which is adapted to judge whether the at leastone of the input/output units is required to be driven to receive theservice for each service that is judged to be at the appropriate timingfor transmitting the inquiry signal by the timing judging unit. Further,the inquiring unit may be adapted to selectively include the identifyinginformation of the service wherein the input/output units to receive theservice are motionless to the inquiry signal as the identifyinginformation of the service to be inquired, and to transmit the inquirysignal to the server when a service that is determined to be at theappropriate timing for transmitting the inquiry signals based on aresult from the device operation judging unit exists, and theinput/output units required to be driven to receive the service aremotionless.

The replying unit may be adapted to judge whether the server is ready toprovide the service inquired by the client device, to generate replyinformation when the server is determined to be ready, and to includethe reply information in a response signal. Further, the client devicemay be provided with a readiness judging unit, which is adapted tojudge, based on the response signal from the replying unit, whether theservice indicated in the reply information in the response signal is theservice that is ready to be provided by the server. Further, the clientdevice may be adapted to execute a process required to receive theservice, which is judged to be ready by the readiness judging unit, whenthe server judges the service is ready to be provided.

The replying unit may be adapted to generate converged replyinformation, which collectively describes the reply information ofservices to be inquired when the inquiry signal received by thereceiving unit of the server includes identifying information of theservices as the identifying information of the service to be inquired,and to transmit a response signal including the converged replyinformation to the client device that transmitted the inquiry signal.

The converged reply information may include reply information of eachservice of the services to be inquired, which is associated withidentifying information of each of the services to be inquiredcorresponding to the reply information.

The replying unit may be adapted to generate the converged replyinformation in which identifying information of the services to beinquired is described based on the identifying information of a group ofservices, each of which includes identical reply information and thegroup of the identifying information with the identical replyinformation associated with the reply information being described, whenidentifying information of services is included as the identifyinginformation of the service to be inquired in the inquiry signal receivedby the receiving unit of the server.

The replying unit may be adapted to judge whether the server is ready toprovide the service inquired by the client device, to generate replyinformation when the server is determined to be ready, and to includethe reply information in a response signal. Further, the client devicemay be provided with a readiness judging unit, which is adapted tojudge, based on the response signal from the replying unit, whether theservice indicated in the reply information in the response signal is theservice that is ready to be provided by the server, and the clientdevice may be adapted to execute a process for receiving the service,which is judged to be ready by the readiness judging unit, when theserver judges the service is ready to be provided.

The replying unit may be adapted to generate the response signal, whichincludes only reply information that is a predetermined reply concerningthe services being stored and transmitted to the client device.

The client device may be adapted to execute each process in parallel,the processes for receiving each of the services, which are determinedto be ready to be provided by the server, when the reply signal receivedby the receiving unit of the client device includes reply informationand the readiness judging unit determines that the services are ready tobe provided by the server.

The client device including input/output units excluding thecommunication unit may be adapted to receive the service from the serverby utilizing the communication unit and at least one of the input/outputunits, and the response signal received by the client device may includereply information, and services that are judged to be ready to beprovided by the readiness judging unit exists, the client device isadapted to execute each of the processes in parallel, the processesbeing required to receive each of the services, which utilizes aninput/output unit that is required by one service, and to executeprocesses sequentially, the processes being required to receive each ofthe services, which utilizes an input/output unit that is required bymore than one service.

The client device may be provided with at least two input/output unitsincluding at least one image processing device, which is adapted to forman image on a recording medium.

The client device may be provided with at least two input/output unitsincluding at least one image processing device, which is adapted to forman image on a recording medium.

According to aspects of the invention, there is provided a communicationdevice including a storage unit, in which information indicating timingto inquire for each service to be received by the communication unitamong the services provided by the server is stored, a timing judgingunit, which is adapted to judge when an appropriate timing to transmitthe inquiry signal for each service occurs based on the informationindicating the timing to inquire for each service, an inquiring unit,which is adapted to generate the inquiry signal, the inquiry signalstoring the identifying information of the service that is determined tobe at the appropriate timing for transmitting the inquiry signal as theidentifying information of the service to be inquired and to transmitthe inquiry signal to the server, and a receiving unit adapted toreceive the response signal transmitted from the server to thecommunication unit in response to the inquiry signal. Further, theinquiring unit may be adapted to generate converged inquiry informationas the identifying information of the service to be inquired whenservices are determined to be at the appropriate timing for transmittingthe inquiry signals, the converged inquiry information collectivelydescribing the identifying information of the services and to transmitthe inquiry signal including the converged inquiry signal to the server.

According to aspects of the invention, there is provided a computerprogram product comprising computer-readable instructions that cause acomputer system to execute processes to function as a communicationsystem. The communication system may include a server that is adapted toprovide types of services, and a client device that is adapted to have acommunication unit communicate with the server and to receive theservices provided by the server by communicating with the server.Further, the server may be provided with a receiving unit, which isadapted to receive an inquiry signal concerning the services transmittedfrom the client device, and a replying unit, which is adapted togenerate reply information concerning a service when the receiving unitreceives the inquiry signal and to transmit a response signal includingreply information to the client device, based on identifying informationincluded in the inquiry signal. Furthermore, the client device mayinclude a storage unit, in which information indicating timing toinquire for each service to be received by the client device among theservices provided by the server is stored, a timing judging unit, whichis adapted to judge when an appropriate timing to transmit the inquirysignal for each service occurs based on the information indicating thetiming to inquire for each service, an inquiring unit, which is adaptedto generate the inquiry signal, the inquiry signal storing theidentifying information of the service that is determined to be at theappropriate timing for transmitting the inquiry signal as theidentifying information of the service to be inquired and to transmitthe inquiry signal to the server, and a receiving unit adapted toreceive the response signal transmitted from the server to the clientdevice in response to the inquiry signal. The inquiring unit may beadapted to generate converged inquiry information as the identifyinginformation of the service to be inquired when services are determinedto be at the appropriate timing for transmitting the inquiry signals,the converged inquiry information collectively describing theidentifying information of the services and to transmit the inquirysignal including the converged inquiry signal to the server.

According to aspects of the invention, there is provided a computerprogram product comprising computer readable instructions that cause acomputer system to function as a communication system, which includes astorage unit, in which information indicating timing to inquire for eachservice to be received by the communication unit among the plurality ofservices provided by the server is stored, a timing judging unit, whichis adapted to judge when an appropriate timing to transmit the inquirysignal for each service occurs based on the information indicating thetiming to inquire for each service, an inquiring unit, which is adaptedto generate the inquiry signal, the inquiry signal storing theidentifying information of the service that is determined to be at theappropriate timing for transmitting the inquiry signal as theidentifying information of the service to be inquired and to transmitthe inquiry signal to the server, and a receiving unit adapted toreceive the response signal transmitted from the server to thecommunication unit in response to the inquiry signal, and wherein theinquiring unit is adapted to generate converged inquiry information asthe identifying information of the service to be inquired when aplurality of services is determined to be at the appropriate timing fortransmitting the inquiry signals, the converged inquiry informationcollectively describing the identifying information of the plurality ofservices and to transmit the inquiry signal including the convergedinquiry signal to the server.

ILLUSTRATIVE EMBODIMENTS

Hereinafter, referring to the accompanying drawings, illustrativeembodiments will be described.

Entire Configuration

FIG. 1 shows a configuration of an image processing system according toa first illustrative embodiment of the invention. As shown in FIG. 1,the image processing system includes an MFP (Multi Function Peripheral)10, a directory server 20, a function server 30, etc., which areinterconnected to each other so that data communication can be performedvia a network 1. According to this illustrative embodiment, the network1 may be a WAN (Wide Area Network) such as the Internet. Specifically,the MFP 10, the directory server 20 and the function server 30 areconnected to the network 1, respectively, via the routers 2 to 4. Inthis illustrative embodiment, the routers are known as broadbandrouters.

The MFP 10 according to the illustrative embodiment has functionsincluding a telephone (voice-communicating) function, a scannerfunction, a printer function, a copier function and a facsimilefunction. The MFP 10 is controlled by the function server 30 to actuatethe input/output functions using the above operational functions

Specifically, the MFP 10 includes, as shown in FIG. 1, a control unit11, an operation unit 12, a reading unit 13, a recording unit 14, acommunication unit 15, a storage unit 16, a sound input unit 17, a soundoutput unit 18, etc. The control unit 11 includes CPU, ROM, RAM, etc.,and the CPU of the control unit 11 controls the entire operation of theMFP 10 in accordance with programs stored in the ROM of the control unit11.

In addition, the operation unit 12 serves as a user interface, whichincludes a copy key 41, a scanner key 42, a FAX key 43, a service key44, a setting key 45, up/down/right/left direction keys 46 to 49, an OKkey 50 and a cancel key 51, a user interface such as a display 52, etc.

In FIG. 1, the reading unit 13 is an input device for realizing afunction of a scanner. That is, the reading unit 13 reads an imageformed (e.g., printed) on a sheet-type recording medium (e.g., paper)and generates image data representing the image.

The recording unit 14, which is an output device for realizing theprinter function, prints out the image represented by the image dataonto a sheet-type recording medium such as paper.

The communication unit 15 connects the MFP 10 to the network 1, and alsoperforms processes for transmitting/receiving data via the network 1.

The storage unit 16 includes a nonvolatile RAM (not shown) in whichinput/output data can be recorded.

The sound input unit 17 receives sound through a microphone provided toa handset (not shown), which is included in the MFP 10, and generatessound data (e.g., PCM data) corresponding to the received sound.

The sound output unit 18 outputs the sound represented by the sound data(e.g., PCM data) with a speaker provided to the handset or a speaker(not shown), which is provided to a main body of the MFP 10.

The directory server 20 includes a control unit 21, communication unit22, and a storage unit 23. The control unit 21 includes CPU, ROM, RAM,etc., and the CPU controls the entire operation of the directory server20 in accordance with the program stored in the ROM.

The communication unit 22 connects the directory server 20 to thenetwork 1 and also performs processes for transmitting/receiving datavia the network 1.

The storage unit 23 includes a hard disk drive (not shown), in whichdata is stored. A service definition information storage unit 24 forrecording service definition information 25, which will be explainedlater, is provided in the storage unit 23. This service definitioninformation 25 is XML (eXtensible Markup Language) data described in XMLand can provide a list of services (e.g., type and request destinationaddress (URL: Uniform Resource Locator) of each service) which can beprovided by function server 30 through a service selection window (referto FIG. 8A) in accordance with the content of the XML data. Respectivetag definitions in the service definition information 25 are shown inFIG. 3.

The control unit 11 of the MFP 10 obtains the service definitioninformation 25 from the directory server 20, via the communication unit15, when the user has input, through the operation unit 12, a commandfor displaying a service selection window. Further, when the controlunit 11 obtains the service definition information 25, the control unit11 displays the service selection window (see FIG. 2) for indicatingtypes of the services on the display 19 a of the display unit 19, basedon the service definition information 25.

The function server 30 includes a control unit 31, a communication unit32, a storage unit 33, etc. The control unit 31 includes CPU, ROM, RAM,etc., and the CPU controls the entire operation of the function server30 in accordance with programs stored in the ROM. Compared with thecontrol unit 11 of MFP 10, the control unit 31 is configured to realizea sufficiently high performance and is capable of performing processeswhich could not be executed by the control unit 11.

The function server 30 executes processes necessary for providing themultiple services mentioned above (see FIG. 65: regular serviceproviding process) in accordance with a request from the MFP 10, andprovides the services to the MFP 10. That is, the MFP 10 communicateswith the function server 30, and executes the processes (e.g., theservice receiving process and output job) to receive the service fromthe function server 30. For example, the MFP 10 utilizes the datacommunication related to providing the services for obtaining the printdata from the function server 30, and then prints out the same using theprinter function (of the recording unit 14). Further, the directoryserver 20 is configured to provide the information regarding theservices each MFP 10 can use (i.e., the services the function server 30can provide) with the MFP 10.

The communication unit 32 connects the function server 30 to the network1 and also performs processes for transmitting/receiving data via thenetwork 1.

The storage unit 33 includes a hard disk drive (not shown), in whichdata is stored. The memory part 33 includes a service I/F informationstorage unit 34 for storing service I/F information 36, and a servicesoftware storage unit 35 for storing service software 37 which performsprocesses for providing different services. This service I/F information36 is XML data described in XML. A parameter input window (describedlater) is displayed on the MFP 10 (see FIG. 16) with the I/F information36, thereby an interface for setting information (service content andrequest destination address) to be used for requesting the functionserver 30 to provide the service is realized.

Respective tag definitions in this service I/F information 36 areindicated in FIG. 4.

Process Executed by MFP

Next, processes performed by control unit 11 of the MFP 10 will bedescribed.

MFP Process

First, MFP processing which is repeatedly performed after MFP 10 hasbeen booted is explained, referring to FIG. 5.

When the MFP process has been booted, initialization processing isperformed (S102). After completion of the initialization process, if aninstruction from an external source is generated, for example, an inputoperation using the operation unit 12 or an input of instruction signalsvia the network 1 (S104), whether the content of the input is forchanging the operation mode to a service mode is judged (S106). In thisillustrative embodiment, when the service key 44 of the operation unit12 is depressed, it is determined that the input instruction is forchanging the operation mode to the service mode. As will be describedlater, the “service mode” is to request the function server 30 toprovide a service.

If it is determined in S106 that the content does not call for change toservice mode (S106: NO), the process is returned to S104 afterperforming a process for another operation mode according to the inputcontent (S108).

If it is determined in S106 that the content is for the change to theservice mode (S106: YES), the process allows the user to select a methodfor specifying the service to be requested from the function server 30(S110). According to the illustrative embodiment, a method selectionwindow shown in FIG. 8 is displayed on the display 52, and the user isasked to select whether to specify the service from a list (“Select fromlist” in FIG. 8) or by directly entering the request destination address(“Direct input” in FIG. 8). After the selection window has beendisplayed, the user can select either designating method using theoperation unit 12.

In S110, if the designation from the list is selected (S110: YES), theprocess requests the directory server 20 for the service definitioninformation 25 (S111). In this illustrative embodiment, as an address atwhich a request for the top item of the service definition information25 is transmitted, the address preliminarily stored in the storage unit16 is used, and the HTTP request (according to HTTP 1.1) is transmittedto the directory server at the address, thereby requesting a list of theservices. When an access in accordance with the address is received, thedirectory server 20 transmits the top item of the service definitioninformation 25 as the HTTP response (according to HTTP 1.1), asdescribed above.

It should be noted that the service definition information 25 includesinformation related to display of the service selection window forallowing the user to select items in a category of the data storageservice, print service or copy application service, and information forallowing the user to select the category itself. In S112, the HTTPrequest is transmitted to an address for accessing the servicedefinition information 25 for displaying the service selection windowthat allows the user to select a category. Such information will bereferred to the top item of the service definition information 25,hereinafter.

After requesting for reference to the top item of the service list, whenthe service definition information 25 transmitted form the directoryserver 20 is received (S114), the process displays the service selectionwindow on the display 25 based on the received service definitioninformation 25 (S116). Thereafter, the process proceeds to S120. If S116is executed after the top item of the service definition information 25is received, a category selection window as shown in FIG. 8A isdisplayed based on the top item of the service definition information 25(i.e., XML description) as shown in FIG. 7.

Specifically, in the category selection window, as a display title(Title), a character string “Directory Service” is indicated at an upperportion of a display area of the display 52, and character stringsindicating selectable categories (Link_Title), i.e., “Data StoringService”, “Print Service” and “Copy Application Service” are indicatedat lower portions of the display area of the display 52. To the categoryselection window shown in FIG. 8A, IDs of other service definitioninformation 25 respectively corresponding to the selectable categoriesare assigned (see “Link_Location” of FIG. 7), and when one of theselectable categories is selected, a request for the service definitioninformation 25 of the ID corresponding to the selected category istransmitted to the directory server 20.

If step S116 is executed after an item of the service definitioninformation 25 other than the top item thereof has been received, forexample, if the service definition information 25 related to the “copyapplication service” is received, the service selection window as shownin FIG. 8B or 8C is displayed, in accordance with the service definitioninformation 25 (XML description) shown in FIG. 9. That is, as shown inFIG. 8B or 8C, the character string “Copy Application Service” isdisplayed at an upper potion in the display area of the display 52, andthe character strings corresponding to the selectable service items(Link_Title), i.e., “Copy with Watermark”, “Translation Copy”, “ReadOriginal Aloud”, “Voice/Text Conversion” are displayed at lower portionsin the display area of the display 52.

In this illustrative embodiment, when all the items (selectable serviceitems) cannot be displayed simultaneously due to a limitation of thedisplay area, the window is configured so that the service items can bescrolled in both up-and-down directions. FIG. 8B and FIG. 8C show such aconfiguration, where FIG. 8C shows a state after the items shown in FIG.8B are scrolled up by one line. To the service selection window shown inFIG. 8B or FIG. 8C, IDs of other service definition information 25respectively corresponding to the selectable service items are assigned(see “Link_Location” of FIG. 9), and when one of the selectable serviceitems is selected, a request for the service definition information 25of the ID corresponding to the selected service item is transmitted tothe directory server 20.

In S110, if designation by direct input of the request destinationaddress is selected (S110: NO), the process displays an address inputwindow (not shown) for allowing the user to directly input the addresson the display 52 (S118), and the process proceeds to the next step(S120).

In this way, after the service selection screen or the address inputscreen has been displayed, the user can select any of the items (addressinput operation), depress each key, or terminate the service mode(termination operation) through the operation unit 12.

Next, the process receives the input operation by the user through theoperation unit 12 (S120). In S122, the process judges whether the inputoperation is an operation for selecting a link. In S122, the processdetermines that a link has been selected when an operation of selectingan item displayed on the service selection window displayed in S116 oran operation to input an address using the address input windowdisplayed in S118 has been performed.

When it is determined that the operation is not for selecting a link(S122: NO), if the input operation is to stop the process (S124: YES),the process returns to S104 and finishes the process in the servicemode. If the input operation is not to stop the process (S124: NO), theprocess outputs an alarm (e.g., a buzzer sound) in S126, and returns toS120.

If it is determined that the input operation is to select a link (S122:YES), the process judges whether the selected link is a link to aservice, that is, the ID to request the function server 30 to provide aservice (S128).

If it is determined that the selected link is not a link to a service,that is, if the selected link is an ID for different service definitioninformation 25 (S128: NO), the process requests the directory server 20for reference to the list of the services. Then, after receiving theservice definition information 25 (S130), the process returns to S116and displays the service selection window on the display 52.

If it is determined that the selected link is a link to a service (S128:YES), the process executes a session process (see FIG. 10) in S132,returns to S104, and finishes the process in the service mode.

Session Process

Next, the session process, which is called at S132 in FIG. 2, will beexplained in detail with reference to FIG. 10 and FIG. 11.

In the session process, first, the service to be used is selected andthe service start up instruction is transmitted based on theLink_Location of service definition information 25 (or the address, ifit has been directly entered) (S202). That is, by transmitting a servicestart-up instruction to the service address by the HTTP request, theservice selected by the user is booted on the function server 30. Asession ID is returned as the HTTP response from the function server 30which has received the service start-up instruction.

Next, the process receives the session ID returned from the functionserver 30 in accordance with the service start-up instruction at S204.It should be noted that, unless explicitly stated, the HTTP requests andHTTP responses transmitted/received in subsequent processes are alltransmitted/received with the session ID included therein. The functionserver 30, which is to receive the HTTP request, is configured to managethe currently communicating device in accordance with the session ID(known session management).

Next, an “MFP instruction inquiry” for inquiring about the existence ofinstructions for the MFP 10 is transmitted to the function server 30 asan HTTP request (S206). If an instruction for the MFP 10 has beengenerated, the function server 30 which received the “MFP instructioninquiry” returns an instruction indicating the generated instruction(otherwise, an instruction indicating “no instructions” if noinstructions have been generated) as the HTTP response.

Next, after the instruction (i.e., the MFP instruction) returned inresponse to the inquiry in S206 has been received (S208), the processjudges whether the received instruction is a job start-up instruction(S208). The “job start-up instruction” is generated by the functionserver 30 after transmitting the service start-up instruction in S202.The job start-up instruction includes instructions to start one of “UIjob”, “input job (scan job or voice job)”, and “output job (print job orspeaker job)”, depending on the timing and service content. To this jobstart-up instruction, a job ID of the job to be activated, a type of job(UI job, input job (scan job or voice job), or output job (print job orspeaker job)) and the communication destination address of the job havebeen added.

If it is determined in S210 that the received instruction is a jobstart-up instruction (S210: YES), the resources required to start up thejob is secured (S212), and then the job that is instructed to start isperformed in steps S252 to S266, described below.

Next, steps S252 through S266 will be described with reference to FIG.11.

First, the process judges whether the job instructed by the job start-upinstruction is a UI job (S252). If it is determined to be the UI job(S252: YES), the job is started according to the job ID andcommunication destination address attached to the job start-upinstruction (S254). Then, the process proceeds to the next step (S214 ofFIG. 10). The UI job is performed simultaneously with other processafter being started-up in S254 and is described in detail in “UI Jobprocess” with reference to FIG. 12.

If the process determines that the job designated by the job start-upinstruction is not the UIjob (S252: NO), but is the scan job (S256: YES)or the voice job (S256: NO, S262: YES), which belong to the input job,the process proceeds to the next step (S214 in FIG. 10) after the inputjob is started up in accordance with the job ID and communicationdestination address attached to the job start-up instruction (S260). Theinput job is performed in parallel with other processes after beingstarted up in S260 and is described in further detail in “Input Job”with reference to FIG. 20.

If it has been determined that the job designated by the job start-upinstruction is not any of the foregoing jobs (S258: NO), but a print job(S258: YES) or a speaker job (S262: NO, S264: YES), which belong to theoutput job, the process proceeds to the next step (S214 in FIG. 10)after the output job is started up in accordance with the job ID andcommunication destination address attached to the job start-upinstruction (S266). This output job is performed in parallel with otherprocesses after being started up in S266 and will be described infurther detail in “Output Job” with reference to FIG. 21.

If it has been determined that the job instructed by the job start-upinstruction is not any of the foregoing jobs (S264: NO), the processproceeds to the next step (S214 in FIG. 10) without starting up a job.

After the job is started up, the process returns to FIG. 10 and, afterpausing for a predetermined interval (S214), returns to S206.

If the process determines that the instruction is not the job start-upinstruction (S210: NO), the process judges whether the instructionreceived in S208 is a job completion instruction (S216). This “jobcompletion instruction” is generated by the function server 30 when thejob is finished after having been started up in respective steps in FIG.11. In the job completion instruction, a job ID of the completed job isattached.

If the process determines that the instruction is a job completioninstruction (S216: YES), the job having the job ID attached to this jobcompletion instruction is terminated (a completion instruction is sentto the relevant job) and the process proceeds to S214 after theresources, which were secured in S212 before the job was started up, arereleased (S218).

If the process determines that the received instruction is not the jobcompletion instruction (S216: NO), the process judges whether theinstruction indicates “no instructions” (S220). If “no instructions” isindicated (S220: YES), the process proceeds to S214. If “no instruction”is not indicated, the process judges whether the instruction is asession completion instruction (S222). The “session completioninstruction” is generated by the function server 30 when the provisionof service to the MFP 10 has been completed.

If the process determines that the instruction is a session completioninstruction (S222: YES), the present session process is completed. Ifthe instruction received in S208 is not any of the foregoinginstructions, the session process is completed after a process forindicating an error (i.e., an instruction error process) is performed(S224). In S224, an error message is displayed 52.

UI Job

Next, the UI job started up in S254 in FIG. 11 is explained in detailwith reference to FIGS. 12 and 15.

When the UI job is started, an MFP job instruction inquiry which is aninquiry for an instruction to the MFP 10 is set to the transmission datastorage area (S300). Here, the MFP instruction inquiry is stored in thestorage area for transmission, which is defined in the RAM of thecontrol unit 11. The information thus set is transmitted to the functionserver 30 in S312 (described later) together with the session ID and jobID. When the MFP job instruction inquiry is transmitted, the functionserver 30 that receives the transmission data transmits back an MFPinstruction (if no instruction is issued, an MFP instructionrepresenting “no instruction”).

Next, the process judges whether the completion is instructed by thesession process (S302). The completion instruction is given in S218 bythe session process.

If it is determined that the completion instruction is given by thesession process (S302: YES), the process indicates completion of the UIjob (S304) by transmitting the session completion instruction to thesession process to finish the UI job. It should be noted that thesession completion instruction is received in S218. Specifically, inS218, when this instruction is received, it is determined that the jobis completely stopped, and the following steps are executed.

If it is determined that the completion instruction has not beenreceived from the session process (S303: NO), the process determineswhether the operation unit 12 is in a busy status (S306). In this step,a busy flag Fu is referred to. The busy flag Fu is set (“1” is set) wheneach job has been started up. If the busy flag Fu is set (i.e., equal to“1”), the operation unit 12 is in the busy status, while, if the busyflag Fu is not set (i.e., equal to “0”), the operation unit 12 is not inthe busy status.

If the operation unit 12 is busy (S306: YES), the process returns toS306 after waiting until the operation unit 12 is released from its busystate, i.e., until the busy flag Fu is released (S308). If the operationunit 12 is not busy (S306: NO), the busy flag Fu is set (S310) and theoperation unit 12 becomes busy as the present UI job is being performed.

Next, the process transmits the information stored in the transmissiondata storage area to the function server 30 as an HTTP request togetherwith the session ID and job ID (S312).

Then, if the MFP instruction, which is returned in response to theinquiry in S321, is received in S314, the process judges whether theinstruction is a parameter request (S316). The “parameter request” is aninstruction generated by the function server 30 that receives the MFPjob instruction inquiry as will be described. Based on the I/Finformation 36 associated with the parameter request, the processrequests the MFP 10 for designation of the parameter.

It should be noted that the I/F information 36 is configured such that,depending on the setting condition of the function server 30, theservice I/F information 36 after the parameter has been set (FIG. 13) orthe service I/F information 36 before the parameter has been set(template) as shown in FIG. 14 is associated with the parameter request(note that FIGS. 13 and 14 show a case when the translation copy isselected). The two types of service I/F information 36 are different inthat: (a) “Form_Type” tag set with “select” and a tag to which theparameter related to input device has been set are sandwiched by“Form_Elem” tag, or (b) only a “Form_Type” tag to which the “Device” hasbeen set is sandwiched by “Form_Elem” tag. Depending whether a parameterrelated to the input device of the MFP 10 is to be obtained, the serviceI/F information 36 to be attached is different.

If it is judged that the instruction is a parameter request (S316: YES),the process transmits to the function server 30 the transmission dataindicating the parameters which have been set in S352-S386 by the user.

Next, S352-S386 will be described referring to FIG. 15.

First, the process generates data containing initial values as thetransmission data for transmitting the parameters to the function server30 based on the service I/F information 36 attached to the parameterrequest (S352). Specifically, the process extracts parameters set as theinitial values at the “Form_Elem” of the service information 36, andgenerates the transmission data containing the extracted values. Itshould be noted that, according to the illustrative embodiment, thesecond finest resolution is selected as the initial values for bothinput and output parameters.

Generation of the transmission data will be described in detail withreference to FIGS. 13 and 14.

First, as the parameter for “Value_Name=long” for the first “Form_Elem”,“en_ja” is registered (see “lang=en_ja” in FIG. 16), and then, as theparameter for “Value_Name=scan_res” in the second “Form_Elem”, “300” isregistered (See “scan_res=300” in FIG. 16). Next, as the parameter for“Value_Name=print_res” in the third “Form_Elem”, “300” is registered(see “print_res=300” in FIG. 16), and then as the parameter for the“Value_Name=comment” of the fourth “Form_Elem”, a null (vacant)parameter is registered (i.e., no parameters are registered) (see“comment=” in FIG. 16).

Then, the first parameter (i.e., the parameter corresponding to thefirst “Form_Elem”) in the service I/F information 36 is subjected toprocessing in the following process (S354).

Next, with respect to the “Form_Elem” of the item selected by the userwhich is selected as the user operates the operation unit 12 (when thisstep is executed firstly in the UI job process, with respect to thefirst “Form_Elem”), the process retrieves a portion sandwiched by the“Form_Data” tag, in the subjected “Form_Elem”, from the service I/Finformation 36 (S356).

Then, the process judges whether the value of the “Form_Type” tag of theportion sandwiched by the “Form_Data” tag, retrieved in S356, representsthe value indicating a input/output device (Device). It should be notedthat the service I/F information 26 of which the “Form_Type” tag doesnot show the input/output device, it is the service I/F information 36after the parameters have been set, while the service I/F information 26of which the “From_Type” tag represents the value indicating theinput/output device is the service I/F information 36 before theparameters have been set (i.e., template).

In S358, if the value of the “Form_Type” has the value representing theoutput device (S358: YES), the process generates a parameter inputwindow requesting the user to designate the parameter, based on theportion sandwiched by the “Form_Data” tag retrieved in S356, anddisplays the parameter input window on the display 52 (S360).

The parameter input screen display is described using service I/Finformation 36 corresponding to the translation copy service as anexample. When the translation copy service is executed, the functionserver 30 recognizes text information by applying an OCR (OpticalCharacter Recognition) process to image data, which is read by thereading unit 13 of the MFP 10, then generates image data representingtext translated into a predetermined language, which is printed by therecording unit 14 of the MFP 10.

First, based on the service I/F information 36 (which is an XMLdescription) shown in FIG. 13, a parameter input window as shown in FIG.19A is displayed. In the parameter input window, as shown in FIG. 16A,the letters “translation copy” are indicated at the upper part of thedisplay area as the display title (Title), the characters “languageselection” are allocated below the display title as an input item(Disp_Name), and below the “language selection”, the characters“English→Japanese” and “Japanese→English”, which are items (Disp_Select)indicating the selectable parameters of the input item, “languageselection”, are indicated. Although there are further input items“scanner setting”, “print setting”, and “comments” related to“translation copy”, in addition to the foregoing “language selection”,only input items regarding “language selection” are shown at this time.This is merely due to limitations in the size of the display 52, and inthis exemplary embodiment, the input items shown in the lower part ofthe display area can be switched between four types, including “scannersetting”, “print setting”, and “comments”, by pressing the left andright direction keys 48 and 49 (switching operation, describedhereafter) from this state.

With regards to the selectable parameters of the input items, thecharacters “normal font” and “small font” are shown as the items(Disp_Select) indicating selectable parameters for “scanner setting”(see FIG. 16B). The “normal font”, in this illustrative embodiment,means that the resolution (reading resolution), which is a parameter ofreading unit 13, is 300×300 dpi, and the “small font” means theresolution is 600×600 dpi. It should be noted that, due to the limiteddisplay are of the display 52, “600×600 dpi” is not displayed in thebeginning (see FIG. 19C), but by scrolling the image screen, theresolution will be displayed (see FIG. 19D).

The item “Disp_Select” showing the selectable parameter regarding the“print setting” includes “200×200”, “300×300”, “600×600” and “1200×1200”are to be displayed (see FIG. 19A). Due to the limited display area ofthe display 52, items “600×600”, “1200×1200” are not displayed in thebeginning, but are, similar to the above, displayed as the image isscrolled.

With regards to “comments”, an entry field is shown below the characters“comment” and the set character string (Default_String) is entered. Thecharacter string entered in the entry field as a comment may be used asthe header or footer of an image when printed.

If the value of the “Form_Type” is the value indicating the input/outputdevice (S358: YES), the process retrieves the set values of theparameters regarding the input/output device (if the step is executedfirst time in the UI job, the input/output device at the first“Form_Elem”) corresponding to the item, which is selected as the useroperates the operation unit 12, from the corresponding portion of thespecification information (i.e., information corresponding to theDevice_Info) (S302), and then, the process generates the parameter inputwindow based on the set values, and displays the same on the display 52(S364).

In the MFP10, since the specification information (see FIG. 27)containing the set values of the parameters regarding the input/outputdevice of the MFP 10 is stored in the storage unit 16. Therefore, inS362, from among the set contents respectively corresponding to theinput/output devices (“Device_Info” tag) in the specificationinformation, values corresponding to the selected item are retrieved. Itshould be noted that the specification information is XML data describedwith XML in which predetermined tags are defined. Definitions of tagsfor the specification information are indicated in FIG. 18.

After the parameter input window is displayed on the display 52, theuser can perform (1) a switching operation for switching the displayeditems to ones which are not displayed due to the limited display are(switching to (n−1)-th or (n+1)-th item by operating left or rightdirection key 48 or 49), (2) a designating operation for designating aparameter (by depressing the up or down direction key 46 or 47 todesignate a parameter (see rectangular by broken line in FIG. 19), (3) ascrolling operation to have not-shown parameters displayed on thedisplay 52 by scroll (which is done by continuing the designatingoperation), (4) a cancel operation for canceling the service provided bythe function server 30 (by depressing the cancel key 51), and (5) acompletion operation for completing providing the setting of theparameters or providing the service (by depressing the OK key 50).

After displaying the parameter input window in S364, the processreceives the operation by the user (S366). If the thus performed user'soperation is the switching operation (S368: YES), the process returns toS356. Then, the process retrieves a portion at the “Form_Elem”,sandwiched by the “Form_Data” tags from the service I/F information 36,and executes the following steps. When the translation copy isperformed, a switching operation from the language selection item to ascanner setting item (in this case, the right key 49 is depressed) isperformed, as shown in FIG. 19C, the scanner setting items are indicatedon the display 52. In another switching operation for switching thepresent state to the print setting item (in this case, the right key 49is depressed again), the print setting items are displayed on thedisplay 52 as shown in FIG. 19D.

Further, if the operation performed by the user is a designatingoperation (S368: NO; S370: YES), the process registers, in S372, theparameters related to the designation with the transmission datagenerated in S352, and returns to S366. When the translation copy isbeing executed, if the parameter of language selection has been changedfrom “English→Japanese” (initial state) to “Japanese→English”, fromamong the parameters having been registered with the transmission data,the value registered as the language selection parameter is changed to aparameter “ja_en” (see FIG. 19B).

If the user's operation is a scrolling operation (S370: NO; S374: YES),the process changes the displayed contents in accordance with thescrolled direction, and the parameters designated at this stage areregistered, in S376, with the transmission data generated in S352, andreturns to S366.

If the user's operation is a canceling operation (S374: NO; S378: YES),the process changes the transmission data generated in S352 to dataindicating “service terminated” (S380). Then, the process sets thetransmission data as the HTTP request in the transmission data storagearea (S384). Thereafter, the process proceeds to S322 of FIG. 12. Thetransmission data is transmitted to the function server 30 later, whenthere is no completion instructions received from the sessions (S302:NO), and the operation panel is not busy (S306: NO), the transmissiondata is transmitted to the function server 30.

If the user's operation is the completion operation (S378: NO; S382:YES), the process proceeds to S384, and sets the transmission at thisstage to the transmission data storage area. Thereafter, the processreturns to S322 (FIG. 12).

If the user's operation is an operation other than the above (e.g., forscrolling or an operation to depress an arrow key in a direction wherethe operation cannot be switched) (S382: NO), the process outputs analarm sound (e.g., buzzer sound) (S386), and returns to S366.

Next, in FIG. 12, if it is determined that the MFP instruction returnedin response to the inquiry in S312 is not the parameter request (S316:NO), the process judges whether the MFP instruction received in S314 isa specification information request (S318). It should be noted that the“specification request” is an instruction issued by the function server30 that has received the MFP job instruction inquiry in accordance withthe setting thereof, and is for requesting the MFP 10 for thespecification information described above.

If it is determined that the received instruction is the specificationrequest (S318: YES), the process sets the specification information inthe transmission data storage (S320), and proceeds to S322. Thespecification information is transmitted to the function server 30 inS312 if there is no completion instruction (S302: NO) and the operationpanel is not in the busy status (S306: NO). Then, the function server 30that has received the specification information returns the parameterrequest as the HTTP response after performing a predetermined process.

Further, in S318, if it is determined not to be the specificationrequest (S318: NO), the process judges whether the MFP instructionreceived in S314 is the service status information (S324). The “servicestatus information” is an instruction generated by the function server30 that receives the MFP status information transmitted in the MFP jobinstruction inquiry or later (S330, S312). The service statusinformation indicates that a process regarding the service is executedwithout any problem, or the service is terminated due to some problem.

If it is determined that the MFP instruction is the service statusinformation (S324: YES), the process displays information correspondingto the service status information on the display 52 (S326), sets theservice status information request that requests for the serviceperformance status in the transmission data storage (S327), and proceedsto S322.

If it is determined that the MFP instruction is not the service statusinformation (S324: NO), the process judges whether the MFP instructionreceived in S314 is the status information request (S328). The “statusinformation sequence” is an instruction requesting to transmitinformation regarding the status of the MFP 10.

If it determined that the received instruction is the status informationrequest (S328: YES), the process sets the MFP status information that isinformation related to the status of the MFP 10 to the transmission datastorage (S330), and proceeds to S322. Here, the process sets the MFPstatus information indicating “paper empty”, “cover open”, and the liketo the transmission data storage as the MFP status information.

If it is determined that the received instruction is not the statusinformation request (S328: NO), the process judges whether the MFPinstruction received in S314 is the server receipt status (S332). The“server receipt status” represents an instruction that indicates whetherthe function server 30 has received the information from the MFP 10successfully.

When it is determined that the MFP instruction is the server receiptstatus (S332: YES), if the content of the server receipt statusrepresents an irregular receipt (NG) (S334: YES), the process sets theinformation which has triggered the transmission of the server receiptstatus to the transmission data storage again (S336), and proceeds toS322. If it is determined that the server receipt status does notrepresent the irregular receipt (NG) (S334: NO), the process sets theservice status information request which is an instruction requestingfor the operation status of the service to the transmission data storage(S332), and process proceeds to S322.

If it is determined that the instruction is not the server receiptstatus (S332: NO), the process judges whether the MFP instructionreceived in S314 represents “no instruction” (S338). If the instructionrepresents “no instruction” (S338: YES), the process sets the MFP jobinstruction inquiry to the transmission data storage area (S339) as inS300, and proceeds to S322. If the instruction does not represent the“no instruction” (S338: NO), the process executes an error process(designation error) in S340, and then, similar to S300, the process setsthe MFP job instruction inquiry to the transmission data storage (S345),and proceeds to S322.

Input Job

Next, the input job process activated in S260 of FIG. 11 will bedescribed in detail with reference to FIG. 20. The input job shown inFIG. 20 is executed in parallel with the session process and the UI jobdescribed above.

When the input job is started, the process judges whether the inputdevice is in the busy state (S402). In this illustrative embodiment, theinput device is determined to be in the busy state if the busy flag Fiis set (i.e., set to “1”), while the input device is determined not tobe in the busy state if the flag is released (i.e., set to “0”). Itshould be noted that, according to the illustrative embodiment, the“input device” may be the reading unit 13 when receiving the servicerelated to the image data generated in the reading unit 13, and may bethe sound input unit 17 when receiving the service related to the sounddata generated in the sound input unit 17.

If the process determines that the input device is in the busy state(S402: YES), the process waits until the input device is released fromits busy state (S404), then returns to S402. If the input device is notin the busy state, the process sets the busy flag Fi (S406).

Next, the process transmits the MFP status information, related to theMFP 10 status, by the HTTP request to function server 30, together withthe job ID assigned to in S260 in the session process (S408). When theMFP status information is received, the function server 30 returns theMFP parameter, which is information generated based on the parameter setin the transmission data storage in S312 and transmitted to functionserver 30 in S321 of FIG. 12 as the HTTP response.

If the MFP parameter is returned (S410) in response to the MFP statusinformation transmitted in S408, the process judges whether thecompletion instruction has been received from the session process (i.e.,whether the completion instruction is issued by the session process) inS412. The completion instruction is given from the session process tothe input job when the job to be completed in S218 of FIG. 10 is theinput job.

When the completion instruction has not been given from the sessionprocess (S412: NO), if the MFP parameter returned in S410 has not beenreceived successfully (S414: NO), the MFP reception status forindicating that the information from the function server 30 cannot bereceived normally (i.e., abnormal reception (NG)) is transmitted to thefunction server 30 by the HTTP request (S416), together with the job IDgiven in S260 in the session process. As the function server 30 whichreceived the MFP reception status transmits the MFP parameter again asthe HTTP response, the process returns to S410 after execution of S416.

If, in S410, the MFP parameter has been received successfully (S414:YES), the MFP reception status for indicating that the information fromthe function server 30 was received normally (i.e., normal reception(OK)) is transmitted to the function server 30 by the HTTP request(S418), together with the job ID assigned in S260 in the sessionprocess. The function server 30 which received the MFP reception statusreturns an input data request requesting for transmission of data to beprocessed by the function server 30, as will be described later.

Next, if the input data request is returned from the function server 30which received the MFP reception status (S420), the process judgeswhether the completion instruction is given by the session process(S422).

When the session process has not given the completion instruction (S422:NO), if the input data request returned in S420 has not been receivedsuccessfully (S424: NO), the MFP reception status indicating theabnormal reception (NG) is transmitted to the function server 30 (S426),as in S416. When the MFP reception status has been received, thefunction server 30 transmits the input data request again, as explainedlater, and thus, the process returns to S420 after execution of S426.

If the input data request returned in S420 has been receivedsuccessfully (S424: YES), the input data to be processed by the functionserver 30 is transmitted by the HTTP request to the function server 30(S428), together with the job ID assigned in S260 of the sessionprocess.

Specifically, the setting values of the input device is changed to thevalues indicated by the MFP parameter received in S410, and then a datainput window asking the user to input data to be processed by thefunction server 30 on the display 52, thereby asking the user to performan input operation for inputting data in the MFP 10. Then, the dataobtained from the user (i.e., input data) is transmitted to the functionserver 30 by the HTTP request, together with the job ID assigned in S260in the session process. For example, messages such as “set original andpress OK key”, “pick up handset and speak” and the like are displayed onthe display 52, and then, data acquired through the reading unit 13and/or the sound input unit 17 is transmitted to the function server 30subsequently. The function server 30 which received the input data mayreturn the service status information for indicating whether the dataprocessing according to the input data has been completed successfully.

The method for acquiring data in the process may be retrieval of datafrom a memory card set in a memory card slot (not shown) or readout ofdata from a certain storage area in the storage unit 16. In such a case,a message asking the user to specify the storage area from which thedata is retrieved is to be displayed on the display 52.

After the input data is transmitted to the function server 30, thesetting of the input device modified in S428 is returned to the originalvalues (S430), and subsequently, the service status information returnedfrom the function server 30 is received (S432).

When the service information is received in S432, or if, in S412 andS422, the session process gave the completion instruction (S412: YES;S422: YES), the busy flag Fi set in S406 is released (S434), and thecompletion of the input job is notified to the session process togetherwith the job ID assigned in S260 in the session process (S436), and theinput job is finished. The notification of completion of the input jobis received during the step S218 of the session process shown in FIG.12. That is, in S218, when the instruction is received, the processdetermines that the job has been completely terminated and the followingsteps are executed.

Output Job

Next, the output job process activated in S266 of FIG. 21 will bedescribed with reference to FIG. 18. The output job operates in parallelwith the session process and the UI job.

When the output job is started, the process judges whether the outputdevice is in the busy state (S502). In this step, the output device isdetermined to be in the busy status if a busy flag Fo is set (i.e., setto “1”) and is determined not to be in the busy state when the flag isreleased (i.e., set to “0”). According to the illustrative embodiment,the “output device” is the recording unit 14 when receiving the servicerelated to image data that is to be printed by the recording unit 14,and is the sound output unit 18 when receiving the service related tosound data that is to be output from the sound output unit 18.

If the process determines that the output device is in the busy status(S502: YES), the process waits until the output device is released fromits busy state (S504), and the returns to S502. If the processdetermines that the input device is not in the busy state (S502: NO),the busy flag Fo is set (S506).

Next, the MFP status information representing the MFP 10 status istransmitted by the HTTP request to the function server 30, together withthe job ID assigned in S266 in the session process (S508). The functionserver 30, which received the MFP status information, returns the MFPparameter, which is information based on the parameter set to thetransmission data storage in S320 and transmitted to the function server30 in S312 of FIG. 12 as the HTTP response.

Next, when the MFP parameter is returned in response to the MFP statusinformation transmitted in S508 (S510), the process judges whether thecompletion instruction has been given from the session process (i.e.,whether there is a completion instruction from session) in S512. Thiscompletion instruction is given from the session process to the outputjob when the job to be completed in S218 of FIG. 12 is the output job.

When the process determines in S512 that the completion instruction hasnot been received from the session process (S512: NO), if the MFPparameter returned in S510 has not been received successfully (S514:NO), the MFP reception status for indicating that the information fromfunction server 30 has not been received successfully (i.e., abnormalreception (NG)) is transmitted to the function server 30 by the HTTPrequest (S516), together with the job ID assigned to in S266 in thesession process. The function server 30 which received the MFP receptionstatus transmits the MFP parameter again, and thus, the process returnsto S510 after execution of S516.

If the MFP parameter can be received successfully (S514: YES), the MFPreception status for notifying that the information from the functionserver 30 has been received successfully (normal reception (OK)) istransmitted to the function server 30 by the HTTP request (S518),together with the job ID assigned to in S266 in the session process. Thefunction server 30 which has received the MFP reception status returnsdata (i.e., the output data) created by the process based on the inputdata transmitted in S428 of FIG. 20, as will be described later.

If the output data is returned from the function server 30 which hasreceived the MFP reception status (S520), the process judges whether thesession process has given the completion instruction (S522), as in S512.

When it is determined in S522 that the completion instruction has notbeen given by the session process (S522: NO), if the output datareturned in S520 has not been received successfully (S524: NO), the MFPreception status for indicating the abnormal reception (NG) istransmitted to the function server 30 (S526), as in S516. The functionserver 30 which received the MFP reception status transmits the outputdata again, as will be described later, and thus, the process returns toS520 after execution of S526.

If the output data returned in S520 has been received successfully(S524: YES), the process outputs the output data through the outputdevice (S528). Specifically, the setting values of the output device aremodified to the values represented by the MFP parameter received inS510, and then, the output data is output through the output device(e.g., images are printed in accordance with the image data, sound wavesare output in accordance with the sound data).

When the output data has been output by the output device, the settingof the output device modified by the processing in S528 is returned tothe original values (S530), and the MFP status information, which isinformation related to the MFP 10 status, is sent to the function server30 by the HTTP request (S532), together with the job ID assigned in S260in the session process. The function server 30 which received the MFPstatus information returns the service status information, as will bedescribed later.

After the service status information returned from function server 30has been received (S534), or when the completion instruction has beenreceived from the session process (S512: YES; S522: YES), the busy flagFo set in S406 is released (S536) and the completion of the input job isnotified to session processing together with the job ID assigned in S260of the session process (S538), the present input job is finished. Thenotification of the completion of the input job is received during theprocess executed in S218 of FIG. 12. In S218, when the instruction isreceived, it is determined that the job has been completely terminatedand the following processes are executed.

Process by Function Server 30

Each process performed by control unit 31 of the function server 30 willbe described hereinafter.

Function Server Process

First, the function server process performed every time when the HTTPrequest is received is explained, referring to FIGS. 22 and 23.

When the function server process is started, the process judges whetherthe received HTTP request is a service start-up instruction (S702). The“service start-up instruction” is transmitted by the MFP 10 in S202 ofFIG. 10.

If it is determined that the received HTTP request is the servicestart-up instruction (S702: YES), the process generates a session ID andtransmission data representing the session ID. Then, the process securesresources for execution of the service and starts up a correspondingprocess (S708), and proceeds to S734. The process started up above is asession process, which will be described later, referring to FIG. 24.

If it is determined that the request is not the service start-upinstruction (S702: NO), the process judges whether the HTTP request is aservice completion instruction (S710). The “service completioninstruction” is set by the MFP 10 to the transmission data storage areain S384 as transmission data instructing termination of the servicegenerated in S380, and is transmitted in S312.

If it is determined that the request is the service completioninstruction (S710: YES), the process releases the session ID and theresources secured in S708, creates transmission data representing thecompletion of the service (S712), and proceeds to execute the nextprocedure (S734 of FIG. 23). If it is determined that the request is notthe service completion instruction (S710: NO), the process judgeswhether service-related information, i.e., information related to aservice (session or job) is included, or more specifically, whether anHTTP request is transmitted by MFP 10 during execution of the sessionprocess or a job (UI job, input job, or output job) (S714).

If it is determined that the service-related information is included inthe request (S714: YES), the process which has transmitted the HTTPrequest (session processing, UI job, input job, or output job) isidentified (S716).

If the process cannot be identified (S718: NO), the control generatesinformation indicating an error (i.e., error notification information),and then proceeds to S734.

If the process is identified (S718: YES), the control transfers theinformation transmitted by the HTTP request to the identified process(S722).

After S722 has been completed, if it is determined that theservice-related information is not included (S714: NO), the storage areafor information corresponding to the session ID or job ID is specified(S724).

If the storage area cannot be specified (S726: NO), the process proceedsto S720, generates the error notification information, and proceeds toS734. If the storage area has been specified (S726: YES), the processjudges whether information to be returned to the MFP 10 exists in thestorage area (S728).

Then, if there is no information to be returned to the MFP 10 (S728:NO), the process generates information representing “no MFP instruction”(S730) and proceeds to S734. If it is determined that information to bereturned to the MFP 10 exists (S728: YES), the process generates an MFPcontrol instruction based on the information to be returned (S732), andthen the process proceeds to S734.

The process returns the information generated in S708, S712, S720, S730and S732 to the MFP 10 as the HTTP responses (S734). Among the HTTPresponses returned to the MFP 10: the transmission data generated inS708 is received by the MFP 10 in S204 of FIG. 10; the transmission dataindication service completion, which is generated in S712, is receivedby MFP10 in S208 of FIG. 10, which is judged in S222 and is determined“YES”. Furthermore, the error notification information generated in S720is received by the MFP 10 in S208 of FIG. 10 which information is judgedand determined “NO” in S222, and then step S224 is executed. Theinformation representing “no instruction” generated in S730 is receivedby the MFP 10 in S208 of FIG. 10, which information is judged anddetermined “YES” in S220. The MFP control instruction generated in S732has a different content in each job, and is received by the MFP 10executing a corresponding job.

If the service control information process is performed (S736: YES),that is, if the determination at S710 is “NO”, the process sets thememory address corresponding to the session ID or job ID to“transmission completed” (S738), and finishes the function serverprocess. If the service control information process has not beenexecuted (S736: NO), the process does not set the memory address, andfinishes the function server process. The service control informationprocess is the data exchange between the MFP 10 and the session/job ofthe function server 30 in steps S714-S732.

Session Process

Next, the session process which is performed in parallel with thefunction server processing will be described referring to FIGS. 24 and25. In the illustrative embodiment, the session processing regarding thetranslation copy service will be described as an example.

When the session processing is started, the process first executesinitialization (S802). Then, the process starts up the service-side UIjob (S804). The service-side UI job (i.e., UI job 1 or UI job 2) is aprocess performed in parallel with the session process and will bedescribed in detail later.

Next, the process outputs the UI job start-up instruction as the MFPinstruction (S806). Specifically, the process stores the UI job start-upinstruction, together with the job ID and communication destinationaddress in the storage area for storing the return information. Then,based on the stored data, the MFP control instruction is generated inS732 of FIG. 22, which is transmitted as a start-up instruction to theMFP 10 in S734 of FIG. 23. The start-up instruction is received by theMFP 10 in S208 of FIG. 10, and based on the start-up instruction, theUIjob is started up on the MFP 10 (S254 of FIG. 11).

Next, the process judges whether the parameter has been input from theMFP 10 (S808). As described later, in the UI job started up in S804, theparameter is obtained from the MFP 10, and a notification that theparameter is obtained is transmitted to the session process. Therefore,in S808, if the notification that the parameter is obtained istransmitted from the UI job, the process determines that parameter inputfrom the MFP 10 has been completed.

If it is determined that parameter input is not completed (S808: NO),the process judges whether the UI job is terminated (S810). Ifacquisition of the parameter from the MFP 10 is not executedsuccessfully the UI job is terminated and information representing thetermination of the UI job is transmitted to the session process.Therefore, in S810, if such information is received (i.e., thetermination of the UI job is notified), the process determines that theUI job is terminated.

If it is determined that the UIjob is not terminated (S810: NO), theprocess returns to S808. If it is determined that the UI job isterminated (S810: YES), the process proceeds to S848.

If it is determined that the parameter input has been completed (S808:YES), a scan job, which is a type of service-end input job, is startedup (S812). This scan job is a process performed in parallel with thesession process, which will be described later.

Next, the process outputs the scan (input) job start-up instruction asthe MFP instruction (S814). In this step, the process stores the scanjob start-up instruction, together with the job ID and communicationdestination address, in the storage area for storing the returninformation. Then, based on the stored data, the MFP control instructionis generated in S732 of FIG. 22, and is transmitted as an activationinstruction to the MFP 10 in S734 of FIG. 23. This start-up instructionis received by the MFP 10 in S208 of FIG. 10, and based on the receivedinstruction, the input job is started up in the MFP 10.

Next, the process judges whether preparation of the scanner (readingunit 13) on the MFP 10 has been completed (S816). In the scan jobstarted up in S812, notification of the completion of scannerpreparation on the MFP 10 is received and notification of this istransmitted to the present session process. Therefore, in S816, ifnotification of the completion of scanner preparation is received fromthe scan job, it is determined that scanner preparation on the MFP 10has been completed.

If it is determined in S816 that scanner preparation is not completed onthe MFP 10 (S816: NO), the process judges whether the scan job isterminated (S818). In the scan job started up in S812, if notificationthat scanner preparation has been completed has not been received fromthe MFP 10 successfully, the scan job itself is terminated (completed),and the termination of the scan job is indicated to the session process.Therefore, if notification of termination is received from the scan job,the process determines that the scan job has been terminated.

If it is determined that the scan job is not terminated (S818: NO), theprocess returns to S816. If it is determined that the scan job has beenterminated (S818: YES), the process proceeds to S844.

If it is determined that the scanner preparation is completed (S816:YES), the print job, which is one type of service-side output job, isstarted up (S820). This print job is performed in parallel with thesession process, which will be described in detail later.

Next, the print (output) job start-up instruction is output as the MFPinstruction (S822). In this step, the process stores the print jobstart-up instruction, together with the job ID and communicationdestination address, in the storage area which stores returninformation. Based on this, the MFP control instruction is generated inS732 of FIG. 22, which is transmitted as the start-up instruction to theMFP 10 in S734 of FIG. 23. This start-up instruction is received by theMFP 10 in S208 of FIG. 10, and based on this instruction, the output jobis started-up on the MFP 10 (S266 of FIG. 11).

Next, the process judges whether preparation of the printer (recordingunit 14) on the MFP 10 has been completed (S824). In the print jobstarted up in S820, a notification of completion of print preparation onthe MFP 10 is received, notification of which is transmitted to thesession process. Therefore, if notification of the completion of printpreparation has been received from this scan job, it is determined thatprint preparation on the MFP 10 has been completed.

If it is determined that print preparation has not been completed on theMFP 10 (S824: NO), the process judges whether the print job isterminated (S826). In the print job started up in S820, if notificationthat print preparation has been completed on the MFP 10 has not beenreceived successfully, the print job itself is terminated (completed),notification of which is transmitted to the session process. Therefore,if notification of termination has not been received from the print job,it is determined that the print job is terminated.

If it is determined that the print job has not been terminated (S826:NO), the process returns to S824. If it is determined that the scan jobhas been terminated (S826: YES), the process proceeds to S840.

If it is determined that print preparation has been completed (S824:YES), the input data acquired from the MFP 10 is retrieved (S828). Inthe scan job started up in S812, the image data read by the reading unit13 of the MFP 10 is acquired from the MFP 10. Therefore, in S828, amongdata (input data) acquired and stored in the predetermined storage area,data corresponding to one page is retrieved.

Next, in S830, processed image data is generated by applying OCRprocessing, translation processing, and print layout processing to theinput data read in S828. Specifically, a text part in the imagerepresented by the input data is recognized by applying OCR processingto the input data retrieved in S828. Then, the text part is translatedinto text in a designated language by applying the translationprocessing to this text part. This translation processing is performedaccording to the parameter obtained in the UI job started up in S804,and the text part is translated into the language represented by thisparameter. Then, based on the recognized and translated text part, imagedata for printing is generated in accordance with the designated printlayout.

Next, the image data generated in S830 is output (S832). In this step,the image data generated in S830 together with the job ID andcommunication destination address are stored in the storage area forstoring the return information. Based on the data stored in the storagefor storing the return information, a print command appropriate to theMFP 10 is generated in S1120, which is transmitted to the MFP 10.

Subsequently, the process judges whether readout of all the input datain S828 (data area for all pages) has been completed (S824). If thereadout has not been completed (S834: NO), the process returns to S828,while, if all the input data has been read out (S834: YES), the processjudges whether output of the output data in S832 (storing in the storagearea) has been completed (S836).

If output of the output data has not been completed (S836: NO), theprocess returns to S828, while, if the output has been completed (S836:YES), the print (output) job completion instruction is output as the MFPinstruction (S838). In this step, processing for storing the print jobcompletion instruction together with the job ID in the storage area forstoring the return information is performed. Based on the stored data,the MFP control instruction is generated in S732 of FIG. 22 and istransmitted to the MFP 10 as the completion instruction in S734 of FIG.23. This completion instruction is received by the MFP 10 in S208 ofFIG. 10, and based on the instruction, the output job of the MFP 10 isterminated (completed) (S218 of FIG. 10).

After print job completion instruction has been output or it isdetermined that the print job has been terminated (S826: YES), theservice-side print job started up in S820 is finished (S840).

Next, the scan (input) job completion instruction is output as the MFPinstruction (S842). In this step, the process stores the scan jobcompletion instruction, together with the job ID, in the storage areafor storing the return information. Based on the stored data, the MFPcontrol instruction is generated in S732 (FIG. 22), which is transmittedto the MFP 10 as the completion instruction in S734 (FIG. 23). Thiscompletion instruction is received by the MFP 10 in S208 of FIG. 10, andbased on the instruction, the input job is terminated (completed) on theMFP 10 (S218 of FIG. 10).

When the scan job completion instruction is output, or it is determinedthat the scan job has been terminated (S818: YES), the service-side scanjob started up in S812 is finished (S844).

Next, the UI job completion instruction is output as the MFP instruction(S846). In this step, the process stores the scan job completioninstruction, together with the job ID, in the storage area for storingthe return information. Based on the stored data, the MFP controlinstruction is generated in S732 of FIG. 22, which is transmitted to theMFP 10 as the completion instruction in S734 of FIG. 23. This completioninstruction is received by the MFP 10 in S208 of FIG. 10, and based onthe instruction, the UI job is terminated (completed) on the MFP 10(S218 of FIG. 10).

In S850, a completion process such as releasing of resources secured ineach job has been performed, and then the session process is terminated.In S852, the process stores the service completion instruction in thestorage area for storing the return information. Based on theinstruction, the MFP control instruction is generated in S732 of FIG.22, which is transmitted to the MFP 10 as the completion instruction inS734 of FIG. 23. This completion instruction is received by the MFP 10in S208 of FIG. 10, and based on the instruction, the session process onthe MFP 10 is finished (S222 of FIG. 10).

UI Job

Next, UI job processing which is started up in S804 of FIG. 24 will bedescribed referring to FIG. 26. The UI job 1 is executed in response tothe receipt of a startup instruction from the session process when thefunction server 30 is set such that the parameters related to the inputdevices of the MFP 10 are not managed on the function server 30 side.

When the UI job is started, the process waits until the MFP jobinstruction inquiry is received from the MFP 10. When received the MFPjob instruction inquiry (S902), the process returns a parameter requestinstruction that requests parameter settings necessary for performingthe service to the MFP 10 as the MFP instruction (S904). The MFPjobinstruction inquiry received in S902 is the HTTP request transmitted bythe MFP 10 in S321 of FIG. 12. The MFP instruction transmitted in S904is the HTTP response received by the MFP 10 in S314 of FIG. 12.Specifically, the service I/F information 36 (e.g., informationcorresponding to the translation copy service: see FIG. 14) has beenadded to the HTTP response. When received the MFP instruction, the MFP10 sets parameters in the transmission data storage area in S316-S320,and transmits the parameter in S312 of FIG. 12 as the HTTP request.

Next, an error counter is initialized (S906). That is, a counter forcounting the consecutive number of occurrences when the parameterscannot be received successfully is reset (i.e., set to “0”).

Next, the process waits until the parameters are received from the MFP10 that received the MFP instruction transmitted in S904. When theparameters are received (S908), the process judges whether theparameters have been received successfully (S910).

If it is determined that the parameter has not been receivedsuccessfully (S910: NO), the process judges whether such a situation hasoccurred consecutively by a predetermined number of times (twice in thisillustrative embodiment) based on the value of the error counter (S912).If it has not occurred consecutively by the predetermined number oftimes (S912: NO), the process outputs the server receipt statusindicating that the parameter has not been received successfully (serverreception NG; abnormal reception) in S914, and counts up the errorcounter (S926). Then, the process returns to S908.

In S914, the process stores the server receipt status in the storagearea for storing the return information. Based on the server receiptstatus, the MFP control instruction is generated in S732 of FIG. 22, andtransmitted as the server receipt status to the MFP 10 in S734 of FIG.23. This server receipt status is received by the MFP 10 in S314 of FIG.12, and based on the received information, the MFP 10 re-transmits theparameters (S334, S336, S312 in FIG. 12).

If a condition where the parameter cannot be received successfullyoccurs consecutively by a predetermined number of times (S912: YES), theprocess notifies the session process of termination (completion) of theUI job (S918), and terminates the UI job. The notification in S918 isreceived by the session process in S810 of FIG. 24.

If it is determined that the parameter has been received successfully(S910: YES), the process outputs the server receipt status indicatingthat the parameter has been received successfully (server reception OK;Normal reception) (S920). In this step, the process stores the serverreceipt status in the storage area for storing the return information.Based on the stored information, the MFP control instruction isgenerated in S732 of FIG. 22, which is transmitted to the MFP 10 as theserver receipt status in S734 of FIG. 23. This server receipt status isreceived by the MFP 10 in S312 of FIG. 12. Based on the thus receivedserver receipt status, it is verified in the MFP 10 that the parameterneed not be retransmitted (S334).

Next, the process notifies the session process of the completion ofparameter input (parameter acquisition) (S922). This notification isreceived by the session process in S808 of FIG. 24.

When S922 is completed, the process waits until the MFPjob instructioninquiry is received from the MFP 10. When the MFP job instructioninquiry is received (S924), the process output the service statusinformation (S926) repeatedly until the UI job is terminated (completed)by another process (e.g., S844 of FIG. 25). In S926, the process storesthe service status information in the storage for storing the returninformation. Based on the stored information, the MFP controlinstruction is generated in S732 of FIG. 22, which is transmitted to theMFP 10 in S734 of FIG. 23 as the service status information.

UI Job 2

Next, a UI job 2 which is executed in S804 of FIG. 24 will be describedwith reference to FIG. 27. The UI job 2 is executed when the functionserver 30 receives the job startup instruction from the session processwhen the parameters related to input devices of the MFP 10 is managed onthe function server 30 side. In the following description, the stepnumbers which are similar to those of the UI job 1 are similar to theprocess in the UI job 1, and description thereof will be omitted for thebrevity.

When the UI job 2 is started, first, the process waits for receipt ofthe MFP job instruction from the MFP 10, and upon receipt of the same(S902), the process returns the specification information request as theHTTP response (S930) to the MFP 10. The specification informationrequest is received by the MFP 10 in S314 of FIG. 12, and the MFP 10that received this request has transmitted the specification informationin S320 by the MFP 10.

After the specification information request is returned, the processwaits until the MFP 10 transmits the specification information as theHTTP request (S932), and based on the thus transmitted specificationinformation, the service I/F information generating process is executedto generates the service I/F information 36 (S934). Then, the processproceeds to S904, where the process returns the parameter requestassociated with the thus generated service I/F information 36 as theHTTP response to the specification information.

Next, the service I/F information generating process will be describedwith reference to FIG. 28.

Firstly, the process generates a copy of the service I/F information 36to be transmitted to the MFP 10 (a template of the service I/Finformation) in S942, and “Form_Data” tag at the top of the service I/Finformation 36 is subjected to the following process (S944).

Next, the process judges whether all the “Form_Data” tags in the serviceI/F information 36 generated in S942 have been processed (S946). If not(S946: NO), the process checks whether “Form_Type” tag is sandwiched inthe “FormData” tags and whether the value of the “Form_Type” tagindicates the input/output device (S948).

If the “Form_Type” tag is not sandwiched or the value of the “Form_Type”tag does not indicate the input/output devices (S948: NO), the processsets the next “Form_Data” tag as the tag subjected to be processed(S950), and returns to S946.

If in S948, the value of the “Form_Type” tag does not have the valuesindicative of the input/output device (S948: NO), the next “Form_Data”tag is subjected to be processed (S950), and returns to S946.

If the “Form_Type” tag has a value indicating the input/output device(S948: YES), the parameters related to the input/output devices areretrieved from the appropriate positions of the specificationinformation received in S932 of FIG. 27 (information corresponding to“Device_Info”) in S952. Specifically, the process retrieves a portionsandwiched by the “Device_Spec” tags in the “Device_Type” tag to whichthe values indicative of the input/output device are set.

Next, from the service I/F information 36 generated in S942, the processdeletes the “Form_Data” tag which is currently subjected to be processed(S954). Then, from among parameters included in the portion retrieved inS952, the top parameter is subjected to be processed (S956).

Then, the process judges whether all the parameters retrieved in S952have been processed (S958). If the all the parameters have not beenprocessed (S958: NO), the “Form_Data” tag is generated based on theparameters subjected to be processed at this stage (S960), and the“Form_Data” tag is added at a position where the “Form_Data” was deletedin S954 (S964), and then, the next parameter is subjected to beprocessed (S964) and the process returns to S958.

If all the parameters have been processed (S958: YES), the processproceeds to S950. As above, steps S946-S964 area repeated until all the“Form_Data” tags are processed (S964: YES), then the process finishesthe service I/F information generating process. As a result, in theservice I/F information generating process, the service I/F information36 as shown in FIG. 13 is generated. Next, in S904 of FIG. 27, theparameter request to which the generated service I/F information isadded is transmitted to the MFP 10.

Scan Job

Next, a scan job process which is started in S812 of FIG. 24 will bedescribed referring to FIG. 29.

When the scan job is started, the process waits until the MFP statusinformation is received from the MFP 10. When the MFP status informationis received (S1002), the error counter is initialized (S1004) as in S906of FIG. 26, and the MFP parameter is output (S1006). The MFP statusinformation received in S1002 is the HTTP request transmitted from theMFP 10 in S408 of FIG. 20. In response to the MFP status information,the process returns the MFP parameters as the HTTP response in S1006.The MFP parameter has been received in S908 of FIG. 26, and is aparameter corresponding to the MFP 10, which is the transmission sourceof the MFP status information received in S1002.

From the MFP 10 that received the MFP parameter, the MFP receptionstatus indicating whether the MFP parameter was received successfully istransmitted from the MFP 10. Therefore, based on the MFP receptionstatus, the process judges whether MFP parameter has been receivedsuccessfully (S1008). Specifically, if the MFP reception statusindicates the abnormal reception (NG), the process determines that thereception was failed, and if the normal reception (OK) is indicated, theprocess determines that reception has been performed successfully.

If it is determined that the MFP parameter has not been receivedsuccessfully by the MFP 10 (S1008: NO), the process judges whether sucha situation has occurred consecutively by a predetermined number ofoccurrence (twice in this illustrative embodiment) is checked, referringto the value of the error counter (S1010). If such a situation has notoccurred consecutively by the predetermined number of times (S1010: NO),the process increments the error counter (S1012), and returns to S1006.

If the state where the parameter has not been received successfullyoccurs consecutively by the predetermined number of times (S1010: YES),the process notifies the session process of the termination (completion)of the scan job (S1014), and outputs the notification instructionindicating the abnormal completion as the service status information(S1016). This notification in S1014 is received by the sessionprocessing in S818 of FIG. 24. In S1016, the process stores thenotification instruction in the storage area for storing the returninformation. Based on the thus stored information, the MFP controlinstruction is generated in S732 of FIG. 22, which is transmitted to theMFP 10 as the notification instruction in S734 of FIG. 23. Thenotification instruction is received by the MFP 10 in S410 of FIG. 20.In the MFP 10, it is determined that the completion instruction isreceived (S412: YES) based on the instruction transmitted in S1014 ofFIG. 29 and received in S818 of FIG. 24.

If it is determined that the MFP parameter has been receivedsuccessfully by the MFP 10 (S1008: YES), it is determined that scanner(reading unit 13) preparation has been completed in the MFP 10, and theprocess notifies the session process of the completion of the scannerpreparation (S1018). The notification is received by the session processin S816 of FIG. 21.

Next, the process outputs an input data request requesting for thetransmission of data to be processed by the function server 30 (S1018).That is, the process stores the input data request in the storage areafor storing the return information (S1020). Based on the stored data,the MFP control instruction is generated in S732 of FIG. 22, which istransmitted to the MFP 10 as the input data request in S734 of FIG. 23.The input data request is received by the MFP 10 in S420 of FIG. 20, andthen, the user operates the MFP 10 and the input data is transmittedfrom the MFP 10.

When the input data is received from the MFP 10, which received theinput data request (S1022), if reception of the input data is completednormally (S1024: YES), a notification instruction indicating normalcompletion is output as the service status information (S1026), andthen, the scan job is completed. In S1026, the process stores thenotification instruction in the storage area for storing the returninformation. Based on the stored information, the MFP controlinstruction is generated in S732 of FIG. 22, which is transmitted as thenotification instruction to the MFP 10 in S734 of FIG. 23. Thenotification instruction is received by the MFP 10 in S432 of FIG. 20.

If reception of the input data has not been completed normally (S1024:NO), the process proceeds to S1016, outputs the notification instructionindicating the abnormal completion as the service status information,and completes the scan job. The notification instruction is received bythe MFP 10 in S423 of FIG. 20.

Print Job

Next, the print job processing which is started in S820 of FIG. 24 willbe described referring to FIG. 30.

When print job is started, the process waits until the MFP statusinformation is received from the MFP 10. When the MFP status informationis received (S1102), the error counter is initialized (S1104) as in S906of FIG. 26, and then, the MFP parameter is output (S1106). The MFPstatus information received in S1102 is the HTTP request transmittedfrom the MFP 10 in S508 of FIG. 21, and the MFP parameter is returned inresponse to the HTTP request, as the HTTP response, in S1106. The MFPparameter is received in S908 of FIG. 26, and is a parametercorresponding to the MFP 10 which is the transmission source of the MFPstatus information received in S1102.

Since the MFP reception status indicating whether the MFP parameter wasreceived successfully is transmitted from the MFP 10 which received theMFP parameter, the process judges whether the MFP parameter has beenreceived successfully by the MFP 10 (S1108) in accordance with the MFPreception status, as in S1008 of FIG. 29.

If it is determined that the MFP parameter has not been receivedsuccessfully by the MFP 10 (S1108: NO), the process judges whether sucha situation has occurred consecutively by a predetermined number oftimes (twice in the illustrative embodiment) based on the value of theerror counter (S1110). If such a situation has occurred consecutively bythe predetermined number of times (S1110: NO), the process incrementsthe error counter (S1112) and returns to S1106.

If a state where the parameter cannot be received successfully occursconsecutively by the predetermined number of times (S1110: YES),termination (completion) of the print job is notified to the sessionprocess (S1114), and then, a notification instruction indicating anabnormal completion is output as the service status information (S1116).This notification in S1114 is received by the session processing in S826of FIG. 24. Further, in S1116, the notification instruction is stored inthe storage area for storing the return information. Based on the storedinformation, the MFP control instruction is generated in S732 of FIG.22, which is transmitted to the MFP 10 as the notification instructionin S734 of FIG. 23. This notification instruction is received by the MFP10 in S510 of FIG. 21. In the MFP 10, the process is determined to befinished (S512: YES) based on the information transmitted in S1114 ofFIG. 30, and receive in S826.

If it is determined that the MFP parameter has been receivedsuccessfully by the MFP 10 (S1108: YES), the process determines thatpreparation for printing (by the recording unit 14) has been completedin the MFP 10 upon receipt of the MFP parameter, and completion of printpreparation is notified to the session process (S1118). Thisnotification is received by the session process in S824 of FIG. 24. Inthe session process, in response to receipt of this notification, stepsS828 through S836 of FIG. 25 are performed and print data istransmitted.

Next, the process converts the print data generated in the sessionprocess (S832 of FIG. 22) in to print data that can be processed by theMFP 10, and stores the converted to data in the storage area for storingthe transmission information (S1120). Here, based on the image datastored in the storage area in S832 of FIG. 25, the MFP 10 generates aprint command that can be output. Then the process stores the printcommand in the storage area for storing the return information togetherwith the job ID and the communication address. Based on the thus storedinformation, the MFP control instruction is created in S732 of FIG. 22,which is transmitted to the MFP 10 as the output data in S734 of FIG.23. The output data is received by the MFP 10 in S520 of FIG. 21. Basedon the output data, the recording unit 14 forms (prints) the imagerepresented by the output data.

The MFP 10, which received the print data, transmits the MFP statusinformation as the HTTP request (S532 of FIG. 21).

When the MFP status information is received from the MFP 10 thatreceived the print data (S1122), if the MFP status information has beenreceived successfully (S1124: YES), the process outputs the notificationinstruction indicating the normal completion as the service statusinformation (S1126), and finishes the print job. In S1126, thenotification information is stored in the storage area for storing thereturn information. Based on the stored information, the MFP controlinstruction is generated in S732 of FIG. 22, which is transmitted to theMFP 10 as the notification instruction (S734 of FIG. 23). Thenotification instruction is received by the MFP 10 in S534 of FIG. 21.

If the reception of MFP status information has not been completedsuccessfully (S1124: NO), the process proceeds to S1116, where theprocess outputs the notification instruction indicating the abnormalcompletion as the service status information, and then completes theprint job. This notification instruction is received by the MFP 10 inS534 of FIG. 21.

In the service providing system according to the illustrative embodimentconfigured as above, the MFP 10 realizes its function by receiving theservice from the function server 30. The function has been transmittedin S360-S386 (FIG. 15) after being designated by the user, and isrealized based on the parameters received from the function server 30 inS410 of FIG. 20 or S510 of FIG. 21. Therefore, the system is applicableeven in an environment where the services may increase/decreaseirregularly as in a general server on the Internet.

If the information regarding a new service is to be registered with theMFP 10 as in a conventional configuration, and the servicesincrease/decrease irregularly, if the specification of the parameter forexecuting the service is changed later, even if the informationregarding the new service is registered with the MFP 10, it becomesimpossible to receive such a service. In order to deal with such asituation, the parameter setting procedure due to change of thespecification may be managed by the MFP 10. However, in such aconfiguration, burden to the MFP 10 becomes large, which is undesirable.

According to the above-described illustrative embodiment, the parametersdesignated by the user of the MFP 10 can be obtained from the functionserver 30, even if the specification of the parameters may be changed,and the burden to the MFP 10 can be suppressed.

Further, when the parameters are obtained, based on the service I/Finformation 36, the MFP 10 generates the parameter input window forallowing the user to designate the parameters from among the parameterscorresponding to the function itself (S360 of FIG. 15), while in S362and S364, by the method specified by the service I/F information 36. Theparameter input windows allow the user to designate the parameterscorresponding to the function of the MFP 10.

Therefore, in the parameter input window, ones corresponding to thefunction which cannot be executed by the MFP 10 will not be entered.Further, when the parameters corresponding to the designated functionare indicated, the parameter input window may be configured such thatthe user can select the parameters with which the MFP 10 sufficientlyfunctions. Then, relatively appropriate parameters can be designated bythe user.

The MFP 10 may allow the user to designate parameters after S352 of FIG.15, at a timing when the parameter request is received in S314 of FIG.12.

According to the illustrative embodiment, when the user selects theparameters, the user can designate the parameters from among thedisplayed parameters. Therefore, the user can designate desiredparameters when confirming the indication.

If the parameters regarding the input/output device of the MFP 10 aremanaged on the function server 30 side, it is possible that themanagement thereafter can be performed by the function server 30.Therefore, it is unnecessary for the MFP 10 to store the parameters orit is unnecessary to generate the service I/F information 36. Therefore,the burden to the MFP 10 is well suppressed. Further, in such a case,the MFP 10 can generate the parameter input window based on the serviceI/F information 36 obtained from the function server 30. Therefore, themethod for generating the parameter input window need not be managed bythe MFP 10 itself. Furthermore, even if the method/process of generatingthe parameter input window is modified, the MFP 10 can easily follow thechanges without a particular measure therefor.

If the MFP 10 is configured to manage the parameters regarding theinput/output devices of the MFP 10, the function server 30 need notmanage the parameters of the MFP 10 since such parameters can beobtained from the MFP 10 in S908 of FIG. 26. Thus, in such aconfiguration, even if the MFPs 10 are employed, the amount of data tobe managed (or memorized) by the function server 30 will not increase.

If the MFP 10 is configured to manage the parameters regarding theinput/output device of the MFP 10, the parameter input window isgenerated in S362 and S364 of FIG. 15. In this case, in order togenerate the parameter input window allowing the user to designateparameters corresponding to the functions of the MFP 10, it is notnecessary to have the function server 30 generate the service I/Finformation 36 corresponding thereto. Thus, the burden to the functionserver 30 in generating the service I/F information 36 can besuppressed. Such a suppression of the burden is particularly effectivewhen the function server 30 is managed in the network on which the MFPs10 are provided.

Second Embodiment Entire Configuration

Hereinafter, an image processing system according to a secondillustrative embodiment will be described.

The image processing system according to the second embodiment includes,as shown in FIG. 31, an MFP 10, a directory server 20, a function server30. In addition to the above, the image processing system includes aninformation management server 70, which is connected to the network 1via a router 5. Further, in this second embodiment, MFPs 10 areconnected to the network 1.

The MFP 10 according to the second embodiment includes a functionenhancement unit 80, which is detachably coupled to the MFP 10, and amount sensor 19 for detecting that the function enhancement unit 80 isattached to the MFP 10. The mount sensor 19 is configured to outputdetection results corresponding to the type of the function enhancementunit 80 coupled to the MFP 10.

The function enhancement unit 80 in this illustrative embodiment may bea duplex printing unit enabling the MFP 10 to print images on both sidesof the sheet-type recording medium, a sheet feed unit functioning tofeed types of sheet-type recording medium to the recording unit 14, anda sheet discharge unit capable of separating different types ofsheet-type recording medium on which images are formed by the recordingunit, and discharging the same.

The information management server 70 includes a control unit 71, acommunication unit 72 and a storing unit 73.

The control unit 71 includes a CPU, a ROM, and a RAM. The CPU controlsthe entire operation of the information management server 70 inaccordance with programs stored in the ROM.

The communication unit 72 connects the information management server 70to the network 1, and via the network, the communication unit 72receives/transmits data.

The storage unit 73 includes a hard disk drive (not shown), and storesdata on the hard disk. The storage unit 73 includes a devicespecification information storing unit 75 for storing specificationinformation 74, which will be described later.

Process by MFP 10 (Second Embodiment)

Hereinafter, various processes executed by the control unit 11 of theMFP 10 will be described. Since the configuration of the MFP 10according to the second illustrative embodiment is close to that of thefirst illustrative embodiment, only the differences with respect to thefirst embodiment will be described in detail.

MFP Process

Firstly, the MFP process which is repeatedly executed by the controlunit 71 after the MFP 10 is started up will be described with referenceto FIG. 32. As mentioned above, the processes and steps similar to thoseof the first illustrative embodiment are indicated by the same referencenumbers (step numbers) and description thereof will be omitted forbrevity.

When the MFP process is started up, the process executes theinitializing process (S102). In the initializing process, a processincluding an updating process (described later) is executed as theinitializing process.

After the initialization process is finished, the process transmits thespecification information of the MFP 10 itself to the informationmanagement server 70 (S154), and proceeds to S158. In S154, thespecification information which is stored in the storage unit 16 istransmitted to a predetermined address of the information managementserver 70 together with the predetermined identification information ofthe MFP 10.

Next, the process starts up the specification updating process(described later) in S158. The specification information updatingprocess is a process for updating the specification information when anevent requiring update of the specification information is occurring,and detailed procedure will be described later.

After the specification information updating process is started, theprocess proceeds to S104, and the process similar to that executed inthe first illustrative embodiment is executed.

Updating Process

Next, the updating process started up in S102 of FIG. 32 will bedescribed with reference to FIG. 33.

When the updating process is started, the process opens a port forconnecting with a server (not shown) that provides the firmware, andenabling the connection with the server via the network 1 (S102). Itshould be noted that, in the second illustrative embodiment, the serveris configured to establish a connection with the specific port of theterminal device and start transmitting the firmware, when the latestfirmware is to be transmitted to the terminal device.

Next, the process pauses until the communication is established with theserver (S1204: NO). When the connection is established with respect tothe server (S1204: YES), the process receives data transmitted from theserver (in this illustrative embodiment, the data representing thefirmware) in S1206.

Next, the process judges whether the data received in S1206 is the datato be used for updating the data of the MFP 10 (S1208). In thisillustrative embodiment, if the version of the firmware written in amemory (flash memory) of the control unit 11 is older than the versionof the firmware represented by the data received in S1206, it isdetermined that the received data is to be used for updating.

If it is determined that the data is used for updating (S1208: YES), theprocess stores the received data in the memory of the control unit 11(i.e., updates the firmware represented by the received data) in S1210,and then reboots the MFP 10 itself in S1212, and finishes the updatingprocess.

Specification Information Updating Process

Next, the specification information updating process which is started upin S158 of FIG. 32 will be described with reference to FIG. 34.

When the specification information updating process is started, theprocess sets the specification information transmission flag to zero(S1302).

Next, the process judges whether, among the setting items represented bythe specification information stored in the storage unit 16, the itemrepresenting the version of the firmware coincides with the version ofthe firmware stored in the memory of the control unit 11 (S1304). Inthis illustrative embodiment, as the specification information, the itemrepresenting the firmware version (i.e., “Firmware_Version” tag), anitem representing the type of the function enhancement unit 80 (i.e.,“Option_Info” tag) are included in addition to the items described inthe first embodiment, as shown in FIG. 35. In S1304, among thespecification information, the portion sandwiched by the“Firmware_Version” tags is retrieved, and is compared with the versionof the firmware written in the memory of the control unit 11.

If the item representing the firmware version of the specificationinformation does not coincide with the firmware version in the memory(S1304: NO), the process rewrites the item representing the firmwareversion in the specification information (i.e., the value of the“Firmware_Version” tag) with the value of the version of the firmwarestored in the memory (S1306), sets the specification informationtransmission flag to one (S1308), and proceeds to S1310.

If the item representing the firmware version of the specificationinformation coincides with the version of the firmware written in thememory (S1304: YES), the process skips S1306 and S1308, and proceeds toS1310.

Next, based on the detected status of the mount sensor 19, the type ofthe function enhancement unit 80 coupled to the MFP 10 is identified(S1310). It should be noted that if the function enhancement unit 80 isnot coupled to the MFP 10, “no unit” is detected to be coupled.

Then, the process judges whether an item representing the functionenhancement unit 80 coupled to the MFP 10 among the set itemsrepresented by the specification information stored in the storage unit16 coincides with the type of the function enhancement unit 80identified in S1310 (S1312). Specifically, the process retrieves aportion sandwiched between the “Option” tags in the “Option_Info”section, which represents the item corresponding to the functionenhancement unit 80 coupled to the MFP 10, and judges whether theretrieved value coincides with the type identified in S1310.

If it is determined that the item representing the type of the functionenhancement unit 80 represented by the specification information doesnot coincide with the type identified in accordance with the detectionresult of the mount sensor 19 (S1312: NO), the process rewrites the itemrepresenting the type of the function enhancement unit 80 in thespecification information with the type identified in S1310 (S1314),sets the specification information transmission flag to one (S1316), andproceeds to S1318.

If it is determined that the item representing the type of the functionenhancement unit 80 represented by the specification informationcoincides with the type identified in accordance with the detectionresult of the mount sensor 19 (S1312: YES), the process skips S1314 andS1316, and proceeds to S1318.

Then, the process judges whether the specification informationtransmission flag is set to one (1) in S1318. If the flag is set to one(S1318: YES), the process transmits the specification information to theinformation management server 70 together with the identificationinformation of the MFP 10 (S1320), and finishes the information updatingprocess. In this step, a predetermined ID of the MFP 10 (a unique ID) istransmitted as the indemnification information together with thespecification information.

If the specification information transmission flag is set to zero (0)(S1318: NO), the process skips S1320 and finishes the specificationinformation updating process.

Session Process

In the session process according to the second illustrative embodiment,when the service is started based on the “Link_Location of the servicedefinition information 25 (S202), the service startup instruction to betransmitted to the service address is transmitted to the function server30 with the identification information (unique ID) of the MFP 10 beingadded. The identification information added to the service startupinstruction is received in the function server process shown in FIG. 22with the service startup instruction, and is referred to in the UI jobafter the session process shown in FIG. 24 is executed.

The process then proceeds to S204, and thereafter, processes similar tothose executed in the first embodiment are executed.

Process by Function Server 30

Next, various processes executed by the control unit 31 of the functionserver 30 will be described. Since the processes are mostly close tothose of the first embodiment, only the different portions will bedescribed.

UI Job

The UI job according to the second embodiment is started in S804 of FIG.24. In the first embodiment, depending on whether the function server 30manages the parameters regarding the input device of the MFP 10, the UIjob 1 or the UI job 2 is selectively executed. In the second embodiment,only the single UI job described below is started. Note that the stepssame as those of the UI job 1 and UI job 2 are indicated by the samestep numbers, and detailed description thereof are omitted.

When the UI job is started, as show in FIG. 36, the process pauses untilthe process receives the MFP job instruction inquiry from the MFP 10.When the MFP job instruction inquiry is received (S902), the processtransmits, in S972, the specification information request which requeststhe specification information on the MFP 10 that is the transmissionsource of the MFP job instruction inquiry received in S902. In thisembodiment, for the identification information added to the servicestartup instruction which has been received in S702 prior to startup ofthe UI job, the specification information request that requests for thespecification information of the MFP 10 identified by the identificationinformation, which is transmitted to the information management server70. When the specification information request is received, theinformation management server 70 returns the specification informationon the MFP 10 that is identified by the identification information.

When the specification information request is transmitted, and thespecification information is returned from the information managementserver 70 (S974), the process proceeds to S934. Thereafter, theprocesses are similar to those of the UI job 1 and UI job 2. InformationManagement Server Process by Information Management Server 70

Hereinafter, the information management server process, which isexecuted by the control unit 71 of the information management server 70,after the information management server 70 is started up will bedescribed with reference to FIG. 37.

When the information management server process is started, the processpauses until data is received from outside (S1402). When data isreceived, the process judges whether the received data is thespecification information transmitted from the MFP 10 (S1404). Thespecification information is transmitted in S154 of FIG. 32 or S1320 ofFIG. 34 from the MFP 10.

If it is determined that the received data is the specificationinformation transmitted from the MFP 10 (S1404: YES), the processregisters the thus received specification information (S1406), andreturns to S1402. In S1406, the specification information is registeredsuch that the specification information received in S1402 is stored inassociation with the identification information (unique ID) receivedtogether with the specification information in the device specificationinformation storage unit 75 of the storage unit 73. It should be notedthat, if the received identification information is the same as thestored identification information, the specification informationcorresponding to the identification information is to be updated to thenew specification information which has been received together with theidentification information.

If it is determined that the received data is not the specificationinformation (S1408: NO), the process judges whether the data is thespecification information request transmitted from the function server30 (S1408). The specification information request is transmitted fromthe function server 30 in S972 of FIG. 36.

If it is determined that the received data is the specificationinformation request from the function server 30 (S1408: YES), theprocess transmits the specification information as requested to thefunction server 30 (S1410), and returns to S1402. In S1410, based on theidentification information corresponding to the specificationinformation request, the specification information stored in the devicespecification information storage unit 75 in relation with theidentification information is retrieved, and the thus retrievedspecification information is returned to the function server 30.

If it is determined that the received data is not the specificationinformation request (S1408: NO), the process executes processingcorresponding to the received data (i.e., other process) in S1412, andreturns to S1402.

According to the image processing system described above, in addition tothe advantages similar to those of the first embodiment, the followingadvantages are also obtained.

For example, the function server 30 requests the information managementserver 70 for the specification information on the MFP 10 (S972 of FIG.36), and based on the specification information transmitted in responseto the request, generates the service I/F information 36. Therefore, thefunction server 30 need not manage the specification information on MFPs10. Therefore, even if there are MFPs on the network, the amount of datato be managed by the function server 30 will not increase.

Even if new functions are added to the MFP 10, or the function isenhanced later (e.g., by update of the firmware), only by updating thespecification information correspondingly on the information managementserver 70, the entire system can deal with the change of the function ofthe MFP 10.

According to the configuration of the second embodiment, since thespecification information on the MFP 10 is integrally managed on theinformation management server 70, it is only necessary that thespecification information is stored in the information management server70. Therefore, different from a system in which the function server 30manages the specification information, even if there are multiplefunction servers on the system, only the information management server70 may store the specification information, and it is unnecessary tohave each of the multiple function servers 30 store the specificationinformation. Accordingly, it is unnecessary to notify the multiplefunction servers 30 of the specification information, and the burden(traffic and processing) regarding the notification of the specificationinformation by the MFP 10 can be suppressed.

Further, according to the above configuration, the informationmanagement server 70 can manage the specification information of the MFP10 by receiving the notification from the MFP 10 and storing thespecification information in the storage unit 73 (S1406 of FIG. 37).Further, the specification information thus registered can betransmitted to the function server 30 in response to a request therefrom(S1410 of FIG. 37).

Still further, in the configuration above, the MFP 10 can indicate thespecification information at a predetermined timing after the MFP 10 isstarted up. Specifically, when the specification information in the MFP10 is modified (S1304, S1312 or S1320 of FIG. 34), or immediately afterthe MFP 10 is started up, the specification information can beindicated.

Therefore, in the former case, when the MFP 10 is utilized, when thespecification information is changed by modifying/updating thefunctions, the specification information is notified every time whensuch a modification/update is made. Further, the specificationinformation of the MFP 10 can be registered with the informationmanagement server 70 by notification thereof. Further, in this case, theMFP 10 indicates the specification information only when it is modified,and it is not executed every time when the MFP 10 requests the functionserver 30 for a service. Therefore, the communication burden (trafficand process) between the MFP 10 and the function server 30 when the MFP10 requests the function server 30 for a service can be suppressed.

In the latter case, when the MFP 10 is first started up, thespecification information thereof is not registered with the informationmanagement server 70. However, when the MFP 10 is started up, thespecification information is indicated automatically. Therefore, eventhe specification information of a newly started MFP 10 can beregistered via the notification. Further, also in this case, thecommunication burden between the MFP 10 and the function server 30 whenthe MFP 10 receives a service from the function server 30 can besuppressed.

It should be noted that the configurations according to the embodimentsis only an illustrative one and can be modified in various ways.

For example, in the second embodiment, the MFP 10 is used as the imageprocessing device. However, the MFP 10 is only an example, and anyimaging device which can receive the service from the function server 30can be employed in the system. Such devices may include a printer, ascanner, a facsimile device, and the like.

In the illustrative embodiments described above, the parameter inputwindow is generated in S362 or S364 of FIG. 15. However, the method ofgenerating the parameter input window need not be limited to the methoddescribed above.

According to the illustrative embodiments, the function server 30transmits the parameter request instruction in S904 of FIGS. 26 and 27together with the service I/F information 36. However, the parameterrequest instruction and the service I/F information 36 can betransmitted with a device different from the function server 30 (asingle device or devices operating in association with each other).

In the embodiments described above, the MFP 10 first receives the topitem of the service definition information 25 for selection of thecategory, and then receives the service information 25 regarding theselected category to allow the user to select a service. However, thisconfiguration is only an exemplary one, and for example, the MFP 10 maybe configured to receive multiple pieces of (e.g., all the pieces of)service definition information stored in the service definition storageunit 24 at a time.

As the parameter the service I/F information 36 requests may not belimited to the resolution, various items can be used. For example, aselection of monochromatic/color images, toner density (i.e., printingthickness), or volume of the sound output may be set.

In the image processing system, only one MFP 10, one directory server 20and one function server 30 are employed. This configuration is only anexemplary one which simplifies the description of the entire system, andthe system configuration can be modified in various ways. That is, theremay be multiple MFPs 10, for example. In such a case, the multiple MFPs10 receive the service definition information 25 from a common directoryserver 20, and may request the respective services from the commonfunction server 30.

It is also possible to employ multiple directory servers 20 in the imageprocessing system. In such a case, for example, a directory server fortransmitting the top item of the service definition information 25 andanother directory server 20 for transmitting the service definitioninformation 25 for each category may be employed.

Further, it may be possible to employ multiple function servers 30. Forexample, a function server 30 for transmitting the service I/Finformation 36 and another function server 30 for executing the servicesmay be employed. Furthermore, for example, a function server 30 forexecuting the session process and another function server for executingthe job process may be employed. Alternatively, for example, a functionserver for executing service A, another function server for executingservices B, C and D, and a further function server for executingservices E and F, . . . may be employed. In such a case, the service I/Finformation 36 may be transmitted such that the function server 30executing a certain service transmits the service I/F informationcorresponding to the executable service. Alternatively, the service I/Finformation may be transmitted by the function server which does notexecute the service corresponding to the transmitted I/F information.

Optionally, the directory server 20 or a part of the directory server 20and/or the function server 30 of a part of the function server 30 may beconfigured as a single device.

Further optionally, the directory server 20 or a part of the directoryserver 20 and/or the function server 30 of a part of the function server30 may be implemented in the MFP 10 of the image processing system.

In the above-described second embodiment, the information managementserver 70 is described as a device separate from the function server 30.It may be possible that the information management server 70 and thefunction server 30 are integrated as a single device. In such a case, ifthe function server 30 registers the specification information in thestorage unit 33 when it receives the notification from the MFP 10, thefunction server 30 can manage the specification information of therespective MFPs 10. Then, based on the thus registered specificationinformation, the service I/F information 36 can be generated for the MFP10 to which the service is to be provided.

In the second embodiment, registration of the specification informationwith the information management server 70 is performed based on thespecification information transmitted from the MFP 10. It should benoted that the registration may be performed directly with respect tothe information management server 70, or by operating the informationmanagement server 70.

According to the second embodiment, the MFP 10 is configured to indicatethe specification information when the specification information ischanged in the MFP 10 (S1320 of FIG. 34) and immediately after the MFP10 is started up (S154 of FIG. 32). This configuration may be modifiedsuch that the notification is performed at only one of the above times.For example, when the configuration is modified such that thenotification of the specification information is performed immediatelyafter the startup of the MFP 10 (S154 of FIG. 32), if the MFP 10 isperiodically started and finished, indication of the specificationinformation in the MFP 10 is executed periodically. Therefore, if thespecification information has been changed during the period, thespecification information after the change is notified, and the thusmodified specification information can also be in the registered statuswith the information management server 70.

Further, in the above configuration, when the specification informationin the MFP 10 has been changed (S1320 of FIG. 34), or immediately afterthe MFP 10 started up (S154 of FIG. 32), the specification informationis transmitted. However, the timing of the notification of thespecification information output from the MFP 10 can be set to anytiming if it is after the startup of the MFP 10.

Third Embodiment

Next, a communication system according to a third illustrativeembodiment of the invention will be described. FIG. 38 is a blockdiagram showing a configuration of the communication system according tothe third embodiment. It should be noted that the elements, members, andunits that are similar to those in the first and/or second embodimentare assigned the same reference numbers, and description thereof isomitted for brevity. As shown in FIG. 38, the communication systemincludes multiple digital copier devices (hereinafter, referred to as anMFP: Multi Function Peripheral) 10, a directory server 20, and afunction server 30, which are connected through a WAN (Wide AreaNetwork) 1 (e.g., the Internet). Specifically, the MFPs 10, thedirectory server 20 and the function server 30 are connected to the WAN1 through routers 2, 3 and 4, respectively.

The router 2 relays a data communication between a node of a sub networkincluding MFPs 10, etc. and a node of a WAN. Among packets transmittedfrom devices on the WAN to devices (e.g., MFP 10) on the sub network,the router allows packets which are responses to requests from thedevices of the sub network to the devices on the WAN 1, to transmit,while preventing other packets from transmitting. With such aconfiguration, the router 2 functions as a fire wall, that preventsunauthorized access from the WAN 1 to the MFPs 10.

As is appreciated by comparing FIG. 38 with FIG. 1, according to theexemplary configuration of the third embodiment shown in FIG. 38, thereare multiple routers 2 respectively connected to the WAN 1, and to eachrouter 2, multiple MFPs 10 and a DNS server 40 are connected.

When the user operates the operation unit 12 of the MFP 10 to input aninstruction to display a service selection window, the control unit 11of the MFP 10 obtains service definition information 25 from thedirectory server via the communication unit 15. After the servicedefinition information 25 is obtained, the control unit 11 displays theservice selection window (see FIGS. 39A and 39B) indicating the types orthe service on the display 19 a of the display unit 19 to ask the userof the MFP 10 to select a service.

In the directory server 20, the services that can be executed by thefunction server 30 are categorized into types such as the “printservice”, “copy application service”, “information providing service”,etc. In the service selection window, firstly, the above multiplecategories are displayed (see FIG. 39A). As the user operates theoperation unit 12 to select one of the displayed categories, theservices belonging to the selected category are displayed on the serviceselection window (see FIG. 39B).

In order to realize the above process, in the service definitioninformation storage unit 24, service definition information 25corresponding to the service selection window for selecting the categoryof the service (i.e., FIG. 39A) and the service definition information25 corresponding to the service selection window for selecting a service(i.e., FIG. 39B) are stored. The former will be referred to as a topitem of the service selection information 25.

FIGS. 40 and 41 show exemplary configurations of the service definitioninformation 25. Specifically, FIG. 40 shows a data configuration of thetop item of the service definition information 25, while FIG. 41 shows,for example, the “information providing service” which is one of thecategories indicated in the service selection window shown in FIG. 39A.

As shown in FIGS. 40 and 41, the service definition information 25 isdescribed with XML (eXtensible Markup Language). The definition of thetags is similar to those referred to in the first embodiment, andindicated in FIG. 3.

When the top item of the service definition information 25 (see FIG. 40)is received by the MFP 10, on its display 19 a, the service selectionwindow as shown in FIG. 39A is displayed. Specifically, as a title,“Directory Service” is displayed on an upper portion of the display areaof the display 19 a. Below the title, as selectable category items(Link_Title), “Print Service”, “Copy Application Service” and“Information Providing Service” are displayed.

Each item is related to an ID of the service definition information 25corresponding to the category (Link_Location). For example, when theoperation unit 12 is operated to input a signal indicating that theselection of the item is fixed under a condition as shown in FIG. 39A,the control unit 11 displays, on the display 19 a, the service selectionwindow corresponding to the selected category based on the ID of theservice definition information 25 corresponding to the selected item.

If, in the service selection window shown in FIG. 39A, the “InformationProviding Service” is selected, the service selection windowcorresponding to the information providing service is displayed on thedisplay 19 a as show in FIG. 39B. Specifically, as a title (Title), acharacter string “Information Providing Service” is displayed on anupper portion of the display area of the display 19 a. Below the title,as the selectable items (Link_Title), “Blog Searching Service”, “NewsProviding Service”, “X-type Information Providing Service”, and “Y-typeInformation Providing Service” are displayed. It should be noted that ifall the items cannot be displayed at a time due to the limited displayarea of the display 19 a, the service selection window is configured tobe scrollable and only a part of the list is displayed at a time.

Each item on the service selection window is associated with the URLinformation (Link_Location) for calling the service. When the useroperates the operation unit 12 to fix the selection of an item, thecontrol unit accesses the URL corresponding to the item via thecommunication unit 14, and receives the service provided by the server(i.e., the function server 30) at the URL. It should be noted that, inthe above case, the MFP 10 accesses the DNS server 30 once to obtain theIP (Internet Protocol) address of the destination URL, and then accessesthe URL.

Next, the function server 30 will be described. The function server 30is, similar to that of the first embodiment, and includes the controlunit 31, the communication unit 32 and the storage unit 33. The controlunit 31 includes the CPU, ROM and RAM (not shown), and controls theentire operation of the functions server 30. It is noted that programsto be executed by the CPU is stored in the ROM.

The communication unit 32 is configured to execute electrical processfor receiving data via the WAN 1. The storage unit 33 is provided with ahard disk drive (not shown), and stores various pieces of data on thehard disk. Specifically, in the storage unit 33, the service I/Finformation storage area 34 for storing the service I/F information 36,a service software storage area 35 for storing service software 37, andthe like are defined.

The service software 37 is a program for executing services. In theservice software storage area 35, multiple programs of service software37 are stored. The control unit 31 executes the multiple programs toprovide the services respectively corresponding to the programs to theMFP 10, which serves as the client.

Further, the service I/F information 36 is for requesting the MFP 10 forparameter information necessary to execute the services. In the serviceI/F information storage area 34, pieces of service I/F information 36are stored.

When the MFP 10 receives the I/F information 36, it displays theparameter input window (see FIGS. 42A-42C) indicating the parameters tobe set on the display 19 a based on the received I/F information,thereby requesting the user to set the parameters.

Here, an exemplary configuration of the service I/F information 36 willbe described. FIGS. 43 and 44 show exemplary configurations of theservice I/F information 36. FIG. 43 is an example of the service I/Finformation 36 corresponding to a blog service. According to the blogservice in this embodiment, the process searches posted messagespublished on a certain blog site for ones including keywords designatedby the user, generates print data representing the contents of theposted messages, and has the recording unit 14 print the image. FIG. 44is an example of the service I/F information 36 corresponding to a localnews providing service. According to the local news providing service,the process obtains the local news data corresponding to theuser-designated area from among the news data contained in a certaindatabase, generates print data representing the obtained news data, andhas the recording unit 14 print out the thus designated and obtaineddata.

As shown in FIGS. 43 and 44, the service I/F information 36 is describedusing the markup language similarly to the above-described servicedefinition information 25. The definition of the tags used in theexamples shown in FIGS. 43 and 44 are the same as those used in thefirst embodiment (see FIG. 4). The basic data in FIG. 4 is the same asthe basic data of the service definition information 25 shown in FIG. 3.

The service I/F information 36 is received by the MFP 10, and theparameter input window as shown in FIG. 42A is displayed on the display19 a. Specifically, as the display title, “Blog Service” is displayed atan upper part of the display area of the display 19 a. Below the title,as input items (Disp_Name), “Search Key 1” is displayed. Further, belowthe “Search Key 1”, an input field for search key corresponding to the“Search Key 1” is displayed. In this input field, a character string theuser input is displayed.

As the input item (Disp_Name) related to the “Blog Search Service”, inaddition to the “Search Key 1”, “Search Key 2” and “Search Key 3” areavailable (see FIG. 43). However, in this embodiment, due to the limiteddisplay area of the display 19 a, all the items cannot be displayed at atime.

Therefore, in the MFP 10 according to the third embodiment, arrows(triangles) are displayed on both sides of the input item displayposition on the display 19 a, and the parameter input window isconfigured to scrollable by operating the arrows. That is, if the userinstructs the operation unit 12 to scroll through, on the display 19 aparameter input window corresponding to another input item will bedisplayed in accordance with the operation. According to the thirdembodiment, the display form of the input items “Search Key 2” and“Search Key 3” is the same as the display form of the item “Search Key1”.

If the MFP 10 receives the I/F information 36 shown in FIG. 44, theparameter input window as shown in FIG. 42B is displayed on the display19 a.

In the parameter input window shown in FIG. 42B, as the display title(Title), “Local News Providing Service” is displayed at an upperportion, and below it, as an input item (Disp_Name), “Area” isdisplayed. Below the “Area”, values of selectable items (Disp_Select)for the “Area”, “Hokkaido”, “Kanto”, “Tokai”, etc. are displayed.Similar to the other items, when all the items cannot be displayed onthe display 19 a at a time, the parameter input window is configured tobe scrollable, for example, in an up-and-down direction.

As the input item (Disp_Name) for the “Local News Providing Service”, inaddition to “Area”, “Prepaid Card No.” and “The Number of SheetContaining Information” are available (see FIG. 44). Due to the limiteddisplaying area of the display 19 a, all the input items cannot bedisplayed at a time.

Therefore, in the MFP 10 according to the third embodiment, similar tothe “Blog Search Service”, arrows (triangles) are displayed on bothsides of the input item display position on the display 19 a, and theparameter input window is configured to be scrollable in right-and-leftdirection. If the user instructs, through the operation unit 12, toscroll the display, the parameter input window corresponding to anotherinput item will be displayed on the display 19 a in accordance with theinstruction. For example, if the user instructs the operation unit 12 toscroll the image rightward, an image shown in FIG. 42C (regarding theinput item “Prepaid Card No.”) will be displayed.

In the parameter input window for the item of “Prepaid Card No.”, theinput field for inputting the prepaid card number is displayed. In theinput field, the character string (i.e., the prepaid card number) inputby the user through the operation unit 12 is displayed. Although notshown, in the parameter input window for the “Number of Sheets”, aninput field in which the number of sheets when the news is printed isinput by the user.

The values input in each of the parameter input windows (including theinput character strings) are transmitted to a program (of a functionserver 30) at the destination URL (Action) which will operate inresponse to those parameter values when the user operates the operationunit 12 and inputs the fixing signal.

Next, a communication among the MFP 10, directory server 20 and functionserver 30 will be described. According to the illustrative embodiment,as a communication protocol for transmitting/receiving data among theMFP 10, directory server 20 and function server 30, HTTP 1.1 (HTTP:HyperText Transfer Protocol) is employed. The MFP 10, directory server20 and the function server 30 instruct or respond to an instruction bymessages associated with an HTTP request and HTTP response.

Specifically, the MFP 10 transmits an instruction to the directoryserver 20 or the function server 30 by transmitting a POST command ofthe HTTP request, with a message associated with the POST command. Onthe other hand, the servers 20 and 30 respond to the inquiry by themessage associated with the POST command of the HTTP request transmittedfrom the MFP 10 such that, if there is an MFP instruction, it isassociated with the message of the HTTP response which is transmitted inresponse to the HTTP request received from the servers 20 and 30.

The instructions are categorized into the instructions from the MFP 10to respective servers 20 and 30 (i.e., a server instruction), and onesfrom the server 20 or 30 to the MFP 10 (i.e., an MFP instruction). Itshould be noted that the communication for both types of instructions isconfigured such that the MFP 10 functions as a client in the HTTPcommunication (i.e., a device that transmits the HTTP request). Withthis configuration, even though the router 2 is located between the MFP10 and the server 20 or 30, transmissions from the server 20 or 30 tothe MFP 10 will not be shielded.

Specifically, the MFP 10 transmits an instruction to the directoryserver 20 or the function server 30 with a message that is associatedwith the POST command of the HTTP request. On the other hand, each ofthe servers 20 and 30 transmits the MFP instruction, if any, byattaching the instruction to the message of the HTTP response, inresponse to the inquiry that is associated with the POST command of theHTTP request, which has been transmitted from the MFP 10.

Next, the processes executed by the control units 11, 21 and 31respectively provided in the MFP 10, directory server 20 and thefunction server 30 will be described. It should be noted that the MFP 10performs an MFP process, which is similar to that of the firstembodiment (see FIG. 5), and thus, will not be described in detailherein.

According to the third embodiment, in S108 (see FIG. 5), the serviceselection window as shown in FIG. 39A is displayed, for example.

According to the third embodiment, in S116 (see FIG. 5), a servicereceiving process shown in FIG. 46 is executed. In this case, the URLinformation (i.e., the URL information described at the Link_Locationtag of the service definition information 25, or the manually input URL)is set as an argument.

Prior to describing the service selection process according to the thirdembodiment, a request for a list of services transmitted in S106 (seeFIG. 5), and an operation of the directory server when a request for theservice definition information 25 is received will be described.

Directory Server Process

FIG. 45 shows a directory server process repeatedly executed by thecontrol unit 21 of the directory server 20.

The control unit 21 of the directory server 20 waits for receipt of theHTTP request in S3201. When the HTTP request is received, the processproceeds to S3202, where the process judges whether the received HTTPrequest is a request for a list of the services. If the received requestis a request for the list of the services (S3202: YES), the processproceeds to S3203, where the process retrieves the top item of theservice definition information 25 from the service definitioninformation storage area 24 of the storage unit 23. Then, the processproceeds to S3207, and transmits the HTTP response including the servicedefinition information 25 to the sender of the HTTP request. Afterfinishing S3207, the control unit 21 finishes the directory serverprocess shown in FIG. 45.

If it is determined that the received request is not a request for thelist of the services (S3202: NO), the process proceeds to S3204. InS3204, the process judges whether the HTTP request received in S3201 isthe request for transmission of the service definition information. Ifit is determined that the request is for transmission of the servicedefinition information (S3204: YES), the process proceeds to S3205 andretrieves the requested service definition information 25 from theservice definition information storage area 24 of the storage unit 23.Then, the process proceeds to S3207, and transmits the HTTP responseincluding the retrieved service definition information 25 to the senderof the HTTP request. Then, the process finishes the directory serverprocess.

If it is determined that the HTTP request is not the request for theservice definition information (S3205: NO), the process proceeds toS3206 and executes a predetermined process corresponding to the HTTPrequest received in S3201. Then, the process transmits the HTTP responseincluding the results of the process to the sender of the HTTP request(S3207). Thereafter, the directory server process is finished.

Service Receiving Process

Next, referring to FIG. 46, the service receiving process according tothe third embodiment, which is executed in S116 of FIG. 5, will bedescribed.

When the service receiving process is started, the process transmits theservice start instruction (HTTP request) to the destination URL which isset as the argument as described above via the communication unit 15.Then, a process for the service corresponding to the URL information(i.e., the service selected by the user) is executed by the functionserver at the destination URL.

Thereafter the process proceeds to S3302, where the process receives thesession ID from the function server 30 of the destination URL. It shouldbe noted that the session ID is generated at S3405 in the functionserver process (see FIG. 48) which is executed by the control unit 31and transmitted in S3409 to the sender MFP 10.

In S3303, the process transmits to the function server 30 an “MFPinstruction inquiry” which is a signal for inquiring whether theinstruction to the MFP 10 (MFP instruction) exists. It should be notedthat the “MFP instruction inquiry” includes the session ID received inS3302.

After execution of S3303, the control unit 11 receives in S3304, aresponse signal to the “MFP instruction inquiry” (i.e., the HTTPresponse) transmitted in S3303 and judges whether the response to the“MFP instruction inquiry” is the “job startup instruction” (S3305). The“job startup instruction” is output in S3603 or S3703 executed by thecontrol unit 31 (described later). The “job startup instruction”includes the job ID for identifying the job, and communicationdestination URL indicating the destination URL when the job is executed.

If it is determined that the instruction is the “job startupinstruction” (S3305: YES), the control unit 11 executes S3306, where theresources necessary for executing the job are secured. Then, the processproceeds to S3307 and executes the designated job startup process (seeFIG. 47). Then, the process proceeds to S3308, pauses a predeterminedinterval, and proceeds to S3303.

If it is determined that the instruction is not the “job startupinstruction” (S3305: NO), then the process proceeds to S3309 and judgeswhether the response to the “MFP instruction inquiry” is the “jobcompletion instruction”. It should be noted that the “job completioninstruction” is output in S3610 or S3708 executed by the control unit 31(described later). The “job completion instruction” includes the job IDfor identifying the job.

If it is determined that the instruction is the “job completioninstruction”, the control unit 11 proceeds to S3310, where thecompletion instruction is input to the job corresponding to the job IDto complete the job and releases the resource. Thereafter, the processproceeds to S3308, pauses for a predetermined interval, and proceeds toS3303.

If it is determined that the instruction is the “job completioninstruction” (S3309: NO), the process proceeds to S3311, and judgeswhether the response to the “MFP instruction inquiry” is the “regularinquiry start instruction”. It should be noted that the “regular inquirystart instruction” is output in S3609 which is executed by the controlunit 31 (described later).

If it is determined that the instruction is the “regular inquiry startinstruction” (S3311: YES), the control unit 11 executes S3312, andstores inquiry management information in the regular inquiry managementtable (see FIG. 52) stored in the storage 16, based on the informationincluded in the “regular inquiry startup instruction”. After executionof S3312 the control unit 11 executes S3308, where the process pausesfor a predetermined interval, and proceeds to S3303.

If it is determined that the instruction is not the “regular inquirystartup instruction” (S3311: NO), the control unit 11 proceeds to S3313to judge whether the response to the “MFP instruction inquiry”represents “no instruction”.

If it is determined that the response to the “MFP instruction inquiry”represent “no instruction” (S3313: YES), the process proceeds to S3308,pauses for a predetermined interval and returns to S3303. If it isdetermined that the response to the “MFP instruction inquiry” does notrepresent the “no instruction” (S3313: NO), the process proceeds toS3314 to judge whether the response to the “MFP instruction inquiry”represents the “service completion instruction”. It should be noted thatthe “service completion instruction” is output in S3611 or S3709executed by the control unit 31.

If it is determined that the response represents the “service completioninstruction” (S3314: YES), the control unit 11 completes the servicereceiving process. If the process has determined that the response doesnot represent the “service completion instruction” (S3314: NO), theprocess proceeds to S3315, where an error processing (e.g., displayingan error message on the display unit 19 a, etc.) is executed.Thereafter, the process finishes the service receiving process.

Designated Job Process

Next, the designated job process executed in S3307 will be described indetail, with reference to FIG. 17.

When the designated job process is started, the control unit 11 judgeswhether the “job startup instruction” is a “UI (user interface) jobstartup instruction” (S3351). It is noted that the “UI job startupinstruction” is an instruction notifying that the UI devices (e.g., theoperation unit 12) provided to the MFP 10 is started to be used.

If the instruction is determined to be the “UI job startup instruction”(S3351: YES), the process proceeds to S3352 to output the job ID and jobcommunication destination URL, and starts the UI job (see FIG. 54), andfinishes the designating job startup process. Then the UI jobcommunicating process is started between the MFP 10 and the functionserver 30. It should be noted that the UI job is executed in parallelwith the service receiving process.

If the “job startup instruction” is determined to be the “UI job startupinstruction” (S3351: NO), the process proceeds to S3353, where theprocess judges whether the “job startup instruction” is the “input jobstartup instruction”. It should be noted that the “input job startupinstruction” is for indicating that the input device (i.e., the readingunit 13 or the sound output unit 17) is started to be used.

Specifically, in S3353, it is determined that the “job startupinstruction” is the “input job startup instruction” when (a) the “jobstartup instruction” is a “scanner job startup instruction” whichinstructs the reading unit (scanner) 13 of the MFP 10 to receive theservice provided by the function server 30, or (b) the “job startupinstruction” is a “voice job startup instruction” that instructs thesound input unit 17 to receive the service provided by the functionserver 30.

If the “job startup instruction” is determined to be the “input jobstartup instruction”, the process proceeds to S3354, outputs the job ID,and job communication destination URL to start the input job, andfinishes the designated startup job. It should be noted that, when theinput job is started up, an input device (i.e., the reading unit 13 orthe sound input unit 17) is designated for the input job.

As above, the input job communication process is started between the MFP10 and the function server 30. Specifically, when the input job isstarted, the control unit 11 generates the data designated by thefunction server 30, using the input device (i.e., the reading unit 13 orthe sound input unit 17). The generated data is transmitted to thefunction server 30, where a predetermined service (e.g., datapublication service) is applied. It should be noted that the input jobis executed in parallel with the service receiving process.

If it is determined that the “job startup instruction” is not the “inputjob startup process”, the control unit 11 proceeds to S3355, where theprocess judges whether the “job startup instruction” is the “output jobstartup instruction”. It should be noted that the “output job startupinstruction” indicates that the output device (i.e., recording unit 14or the sound output unit 18) is started to be used.

Specifically, the “job startup instruction” is determined to be the“output job startup instruction” if (a) the “job startup instruction” isa “print job startup instruction” that instructs the recording unit(printer) 14 to receive the service provided by the function server 30,or (b) the “job startup instruction” is a “speaker job startupinstruction” that instructs the sound output unit 18 to receive theservice provided by the function server 30.

If it is determined that the instruction is the “output job startupinstruction” (S3355: YES), the process proceeds to S3356, where the jobID, and job communication destination URL are transmitted, and theoutput job (see FIG. 67) is started, and the designated job startupprocess is finished. It should be noted that, when the output job isstarted up, the output device (i.e., the recording unit 14 or the soundoutput unit 18) subjected to be controlled should be designated. Thus,the communication of the output job is started between the MFP 10 andthe function server 30. This output job is also executed in parallelwith the service receiving process.

If it is determined that the “job startup instruction” is not the“output job startup instruction” (S3355: NO), the control unit 11 doesnot start the job (i.e., UI job, input job, or output job), and thedesignated job startup process is finished.

Function Server Process

Next, a function server process executed by the function server 30,which receives the service startup instruction from the MFP 10 will bedescribed. FIG. 48 shows a flowchart of the function server processexecuted by the control unit 31. The function server process is providedfor each type of service.

When the function server process is started, the process pauses untilthe HTTP request is received (S3401). When the HTTP request is receivedvia the communication unit 15, the process proceeds to S3402, where itis judged whether the HTTP request received in S3401 is the servicestartup instruction. If it is determined that the received HTTP requestis the service startup instruction (S3402: YES), the process proceeds toS3405, where the process generates a session ID, generates transmissiondata containing the session ID, and starts up a process for providingthe service. For example, if the function server process is foraccepting a usage registration of a service for providing informationperiodically (e.g., a blog search service, a local news providingservice, etc.), a registration service shown in FIG. 50 is executed(described later). Thereafter, the process proceeds to S3409.

If it is determined that the HTTP request is not the service startupinstruction (S3402: NO), the process proceeds to S3406 and judgeswhether the HTTP request received in S3401 is the “service completioninstruction”. If it is determined that the HTTP request is the “servicecompletion instruction” (S3406: YES), the process proceeds to S3407,where the process releases the session ID and resources, and proceeds toS3409.

If it is determined that the HTTP request is not the “service completioninstruction”, the process executes the service control informationprocess (see FIG. 49). In S3409, the process generates an HTTP responsecontaining the transmission data which has been generated in S3405,S3407 or S3408, and transmits the thus generated HTTP response to theMFP 10, which is the sender of the HTTP request.

After S3409 is executed, the process judges whether the service controlinformation process is executed (S3410). If it is determined that theservice control information process has been executed (S3410: YES), theprocess sets a flag indicating that the data has been “transmitted” inthe memory address corresponding to the session ID or job ID (S3411),and finishes the function server process. If it is determined that theservice control information process has not been executed (S3410: NO),the process skips S3411, and finishes the function server process.

Service Control Information Process

Next, the service control information process executed in S3408 of thefunction server process will be described with reference to a flowchartshown in FIG. 49.

When the service control information process is executed, the processjudges whether information to be transmitted to the service exists inS3501. Specifically, the process judges whether informationcorresponding to the process realizing the service identified by thesession ID or job ID is included in the HTTP request received in S3401by the function server 30.

If the HTTP request does not include such information to be sent to theservice (process) (S3501: NO), the process proceeds to S3506. If it isdetermined that there is information to be transmitted to the service(S3501: YES), the process proceeds to S3502. In S3502, the processidentifies the process corresponding to the session ID or the job ID.That is, in this step, the process identifies the process which is thedestination of the information included in the received HTTP request.

If the destination process cannot be identified (S3503: YES), thecontrol generates error notification information as the transmissiondata (S3504), and finishes the service control information process. Ifthe destination process can be identified (S3503: NO), the controlproceeds to S3506 after transmitting the information to the identifieddestination process (S3505).

In S3506, a memory area for storing return information generated by theprocess corresponding to the session ID of job ID (hereinafter, thememory area being referred to as return information storing area) isspecified. If the return information storing area cannot be specified(S3507: YES), the process proceeds to S3504, where, error communicationdata is generated as transmission data to be contained in the HTTPresponse. Thereafter, the service control information process isfinished.

If the return information storing area can be identified (S3507: NO),the process proceeds to S3508, and judges whether the return informationis stored in the specified return information storing area. If it isdetermined that the return information is stored, the process proceedsto S3509 and generates the “MFP instruction” based on the returninformation as the transmission data. Then, the service controlinformation process is finished.

If it is determined that the return information is stored in the returninformation storing area (S3508: YES), control proceeds to S3509, andtransmits the MFP instruction based on the return information as thetransmission data. Then, the service control information process isfinished.

If it is determined that the return information is not stored in thespecified return information storing area (S3508: NO), the processproceeds to S3510, generates the information indicating “no MFPinstruction” as the transmission data (S3510), and finishes the servicecontrol information process.

Next, a process the control unit 31 of the function server 30 started inS3405 will be described. It should be noted that the contents of theprocess described above are different depending on the type of theservices. In the following description, as an illustrative example, aregistration process for registering a service for periodicallyproviding information (i.e., blog search service, local news providingservice, etc.) will be described. FIG. 50 shows a flowchart illustratingthe registration process executed by the control unit 31.

When the registration process is executed, the process executes aninitialization in S3601, and starts up the service side UIjob (see FIG.53; described later) in S3602. In S3603, the process outputs the “UI jobstartup instruction” as the MFP instruction. Specifically, the processwrites the “UI job startup instruction” in the return informationstoring area corresponding to the session ID generated in S3405.

Then, the “UI job startup instruction” is transmitted to the MFP 10 asthe MFP instruction via the service control information process. Thecontrol unit 31 confirms the transmission of the MFP instruction bychecking that the flag “transmitted” is set in S3411 of the functionserver process (FIG. 48). It should be noted that the “US job startupinstruction” includes the job ID and job communication destination URLof the service side UI job started up in S3602.

When the process in S3603 is finished, the control unit 31 proceeds toS3604 and judges whether the values of the parameters have been input.It should be noted that whether the input of the parameter values hasbeen completed is judged based on whether the notification indicatingthe completion of parameter input is transmitted to the registeringprocess in S711 of the service-side UI job (see FIG. 53).

If the process determines that the input of the parameter values has notbeen completed (S3604: NO), the process proceeds to S3605 and judgeswhether the termination has been notified. It should be noted that thetermination is notified in S709 of the service-side UI job (see FIG.53).

In S3605, if it is determined that the termination has not yet beennotified, the process returns to S3604. If it is determined that thetermination has been notified (S3605: YES), the process proceeds toS3610. If it is determined that the parameter values have been input(S3604: YES), the process proceeds to S3606 and generates a requestservice ID.

The request service ID is used to provide the service corresponding tothe input parameter values only to the MFP 10 to which the parametervalues are input. The request service ID is generated as a unique ID atevery usage registration of the service (i.e., at every input operationof the parameter information), and indicated only to the MFP 10 in whichthe parameter values are input, in S3609.

When step S3606 has been executed, the process writes the requestservice ID generated in S3606 and input parameter values (parameterinformation) in a request service ID management table which is stored inthe storage unit 33. FIG. 51A shows an exemplary configuration of therequest service ID management table.

The request service ID management table stores the request service IDs,and the values of the parameters (parameter information) which wereinput from the MFP 10 (i.e., the client device) when the request serviceIDs are generated in a related manner. The request ID management tableis stored in the storage unit 33 for each type of service, correspondingto the processes for registration prepared for each type of service,respectively. For example, the storage unit 33 stores the requestservice ID management table for the blog searching service, and therequest service ID management table for local news providing service.

That is, in S3607, the process inserts a request service ID and theparameters (parameter information) input through the MFP 10 are added tothe request service ID management table corresponding to the presentprocess for registration.

After execution of S3607, the process proceeds to S3608 where theprocess stores the reply management information corresponding to therequest service ID generated in S3606 in the regular inquiry replymanagement table. FIG. 51B shows an exemplary configuration of theregular inquiry reply management table.

As shown in FIG. 51B, the regular inquiry reply management table hasdescriptions of the request service IDs and reply management informationincluding service start information, service URL information, servicestatus information, service cancel information, and the reply managementinformation being provided for each request service ID.

The service start information indicates whether preparation forproviding the service has been finished. If the preparation has beenfinished, the value of the service start information is “TRUE”, while ifthe preparation has not been finished, the value is “FALSE”.

The service URL information is URL information of the function server 30that provides the service corresponding to the request service ID. Theservice status information is status information of the function server30 that provides the service.

The service status information has a value of “O” when the status of theservice corresponding to the request service ID is normal If the statusis abnormal, the value of the service status information has a negativevalue with the absolute value representing a cause of the abnormalstate.

The service cancel information represents whether the provision of theservice has been finished. If the provision of the service has beenfinished, the service cancel information has a value “TRUE” while if theprovision of the service is being continued, the value is “FALSE”. Itshould be noted that service cancel information having the value of“TRUE” will be automatically deleted, after being retained for apredetermined period of time, by the regularly deleting program (notshown) provided to the function server 30. Further, as the automaticdeletion of the reply management information, the parameter informationregarding the request service ID, which is subjected to the automaticdeletion above, in the request service ID management table will also bedeleted.

When S3608 is finished, the control unit 31 outputs a “regular inquirystart instruction” as the MFP instruction (S3609). Specifically, in thisstep, the process writes the “regular inquiry start instruction” in thereply information storage area corresponding to the session ID generatedin S3405. With the writing process above, the “regular inquiry startinstruction” is transmitted to the MFP 10 as the MFP instruction, viathe service management information.

It should be noted that the “regular inquiry start instruction” includesthe request service ID, information representing a time interval of theregular inquiry designated for the MFP 10 (inquiry intervalinformation), information representing whether the inquiry should bemade immediately after elapse of the time interval (immediate processinformation), and information representing a type of input/output devicenecessary to be operated on the MFP 10 side when the service is used(used device information).

When the “regular inquiry start instruction” is received, the controlunit 11 of the MFP 10 proceeds to S3312 (FIG. 10) and adds, inaccordance with the information contained in the “regular inquiry startinstruction”, the inquiry management information containing the requestservice ID, request status information, inquiry interval information,remaining time information, immediate operation information, and useddevice information, in the regular inquiry management table stored inthe storage unit 16.

It should be noted that the request service ID, the inquiry intervalinformation, the immediate process information, and the used deviceinformation stored in the regular inquiry management table are the sameas the information included in the “regular inquiry start instruction”.On the other hand, the request status information is the informationreceived as the reply to the inquiry, and represents whether theabove-described service status data is obtained from the function server30. If the request status information is to be obtained from thefunction server, the value of the request status information is “TRUE”,otherwise its “FALSE”.

In S3312, the request status information is written in the regularinquiry management table with its value being “TRUE”. It is noted that,according to the third embodiment, when a request status informationvalue change instruction is input through the operation unit 12, thevalue of the designated request status information in the regularinquiry management table is changed to “FALSE” (or “TRUE”) in accordancewith the instruction.

The remaining period information represents the remaining time period tothe next inquiry. In S3312, the inquiry period information and theremaining period information having the same value as the inquiry periodare written in the regular inquiry management table. The remainingperiod information is updated in S3901.

When the output in S3609 is finished, the process proceeds to S3610 andoutputs the “UI job completion instruction” as the MFP instruction.Specifically, in this step, the “UI job completion instruction” isstored in the reply information storage area corresponding to thesession ID generated in S3405. With this operation, the “US jobcompletion instruction” is transmitted to the MFP 10 as the MFPinstruction, through the service control information process.

When S3610 is finished, the process proceeds to S3611, where the processinputs the completion instruction to complete the service-side UI job,and outputs the “service completion instruction” as the MFPjob. Then,the process finishes the registration process.

Service-Side UI Job and UI Job Executed by MFP

Next, the service-side UI job executed by the control unit 31 of thefunction server 30 in S3602 will be described with reference to FIG. 53,and the UI job executed in S3352 by the control unit 11 of the MFP 10 inresponse to the “UI job startup instruction” output in S3603 (receivedin S3304) will be described with reference to FIG. 54. It should benoted that FIG. 53 shows a flowchart of the service-side UI job executedby the control unit 31 of the function server 30, and FIG. 54 shows aflowchart of the UI job executed by the control unit 11 of the MFP 10.

When the service-side UI job is started, the control unit 31 receivesthe “MFP job instruction inquiry” from the MFP 10 in S3701. The “MFP jobinstruction inquiry” is set as the transmission data in S3800 of the UIjob executed by the control unit 11 of the MFP 10 (FIG. 54), andtransmitted in S3806.

Next, in S3702, the process transmits the “parameter requestinstruction” requesting the input of the parameter necessary forexecuting the service to the MFP 10 as the MFP instruction. It should benoted that, together with the “parameter request instruction”, theservice I/F information 36 stored in the service I/F information storagearea 34 is transmitted. Specifically, if the registration process thatstarted up the service-side UI job is the process for receiving theregistration of the blog search service, the service I/F information 36shown in FIG. 43 is transmitted. If the registration process thatstarted up the service-side UI job is the process for usage of the localnews providing service, the service I/F information 36 is transmitted.

After execution of S3702, the control unit 31 proceeds to S3703 andinitializes the error count. Next, the process receives (S3704) thevalues of the parameters input by the users via the parameter inputwindow based on the service I/F information 36. The values of theparameters are set as the transmission data in S3810 (FIG. 54) of the UIjob executed by the control unit 11 of the MFP 10, and transmitted inS3806.

When the process receives the parameter values in S3704, the processproceeds to S3705, and judges whether the parameter values received inS3703 are normal. If it is determined that the parameter values are notnormal (S3705: NO), the process proceeds to S3706, and judges whetherthe parameter values are determined to be abnormal a second time, basedon the value of the error count.

If it is determined that the determination of the abnormal values is notthe second time (i.e., the first time), the process proceeds to S3707,and a server reception status which is an indication whether thefunction server 30 successfully received the information from the MFP 10is transmitted to the UI job of the MFP 10, indicating a “server receiptNG (abnormal reception)”.

After execution of S3707, the control unit 31 increments the error count(S3708), and proceeds to S3704. If it is determined that the abnormalreception is the second time (S3706: YES), the process proceeds toS3709. In S3709, the process notifies the process that started theservice-side UI job (i.e., the registration process) of the terminationthereof, and finishes the service-side UI job.

In S3705, if it is determined that the parameter values are normal, theprocess proceeds to S3710, and transmits the server reception statusindicating “server receipt OK (normal reception)” to the UI job of theMFP 10.

When S3710 is executed, the process proceeds to S3711 and notifies theprocess that started the service-side job (registration process) of“completion of parameter input”. Then, the process proceeds to S3712 andwaits for receipt of the “service status information request”. When the“service status information request” is received, in S3713, the processtransmits the “service status information” to the UI job of the MFP 10.Then, the process returns to S3712.

As above, the steps of (1) receiving the “service status informationrequest” from the MFP 10 and (2) transmitting the “service statusinformation” in response to the receipt of the “service statusinformation request” are repeated until the service-side UI job isfinished (S3611). It should be noted that the “service statusinformation” is information representing that the parameter values havebeen input normally.

The control unit 11 of the MFP 10 executes the following process whenthe UI job is started (S3352) in response to the “UI job startupinstruction” issued in S3603.

When the UI job is executed, the control unit 11 of the MFP 10 sets the“MFP job instruction inquiry” which is the inquiry for the instructiondirected to the MFP 10 in S3800, and judges whether the completioninstruction is received from the process that booted the UI job. Itshould be noted that the completion instruction is output in S3310.

If it is determined that the completion instruction was received (S3801:YES), the control unit 11 proceeds to S3802 and notifies the processthat booted the UI job (i.e., the service reception process) ofcompletion of the process, and finishes the UI job.

If it is determined that the completion instruction has not beenreceived (S3801: NO), the process proceeds to S3803 and judges whetherthe operation unit 12 or the display unit 19 is in a busy state.Specifically, based on the busy flag Fu indicating whether the operationunit 12 or the display unit 19 is busy not, the judgment is made. If thebusy flag Fu is on, the process determines that the operation unit 12 orthe display unit 19 is busy, or otherwise, not busy.

If it is determined that the operation unit 12 or the display unit 19 isbusy, the process proceeds to S3804 and pauses until the busy state ofthe operation unit 12 or the display unit 19 is released. Then, theprocess returns to S3803. If it is determined that the operation unit 12or the display unit 19 is not busy, the process proceeds to S3805, andsets the busy flag Fu.

Next, the process transmits the transmission data, which has been set inS3800 or the like to the function server 30 (S3806). After transmittingthe transmission data, the process receives, in S3807, a response signalto the transmission in S3806. In S3808, the process judges whether thereceived response signal is the “parameter request instruction”. Itshould be noted that the “parameter request instruction” has beentransmitted by the control unit 31 in S3702.

If it is determined that the received response signal is the “parameterrequest instruction” (S3808: YES), the process proceeds to S3809, wherethe process displays the parameter input window on the display 19 a ofthe display unit 19 based on the service I/F information 36 to requestthe user to input parameters and accept the input values.

When a confirmation signal regarding the input parameter values acceptedin S3809 is input through the operation unit 12, the input parametervalues are set to the transmission data (S3810) in order to provide thevalues to the service-side UI job executed by the function server 30.Then, in S3811, the process releases the busy flag Fu, and returns toS3801.

If it is determined that the instruction is not the “parameter requestinstruction” (S3808: NO), the process proceeds to S3812, and judgeswhether the response signal received in S3807 represents the “servicestatus information”. It should be noted that the “service statusinformation” is transmitted in S3713 executed by the control unit 31 ofthe function server 30.

If it is determined that the response signal represents the “servicestatus information” (S3812: YES), the process proceeds to S3813 anddisplays the information related to the “service status information” onthe display 19 a of the display unit 19 (S3821). Thereafter, the processsets the “service status information request” for obtaining the servicestatus information from the function server 30 to the transmission data(S3821). Then, the process proceeds to S3811 to release the busy flagFu, and returns to S3801.

If it is determined that the response signal does not represent the“service status information” (S3812: NO), the process judges whether theresponse signal received in S3807 is the “server reception status”representing whether the function server 30 has received the informationfrom the MFP 10 successfully (S3814). If it is determined that theresponse signal is the “server reception status” (S3814: YES), theprocess proceeds to S3815 and judges whether the “server receptionstatus” represents the “server reception NG” (S3815).

If it is determined that the “server reception status” represents the“server reception NG” (S3815: YES), the process proceeds to S3816. InS3816, the process sets the re-transmission information (parameterinformation) which is the same information as the previously transmittedinformation to the transmission data in order to provide the previouslytransmitted information to the service-side UI job executed by thefunction server 30. Then, the process proceeds to S3811, releases thebusy flag Fu, and returns to S3801.

If it is determined that the “server reception status” does notrepresent the “server reception NG” (S3815: NO), the process sets the“service status information request” to the transmission data. Then, theprocess proceeds to S3811, releases the busy flag Fu, and returns toS3801.

If it is determined that the response signal does not represent the“server reception status” (S3814: NO), the process judges whether theresponse signal received in S3807 represents the “no instruction” inS3817.

If it is determined that the MFP instruction represent the “noinstruction” (S3817: YES), the process proceeds to S3823, where the “MFPjob instruction inquiry” to the transmission data. Then, the processproceeds to S3811, releases the busy flag Fu, and returns to S3801. Ifit is determined that the MFP instruction does not represent the “noinstruction” (S3817: NO), the process proceeds to S3818 and executesother process. When S3818 is executed, the process sets appropriate datacorresponding to the process to be executed to the transmission data.For example, after executing a process corresponding to the responsesignal, the “MFP job instruction inquiry” is set to the transmissiondata. Thereafter, the process proceeds to S3811, the busy flag Fu isreleased and the process returns to S3801.

Regular Inquiry Process

Next, the regular inquiry process executed by the control unit 11 of theMFP 10 for realizing the above-described regular inquiry will bedescribed. FIG. 55 is a flowchart illustrating the regular inquiryprocess. This process is started when the MFP 10 is powered on, andcontinuously executed until the MFP 10 is powered off.

When the regular inquiry process is started, the controller 11 updatesthe remaining period information in the regular inquiry managementtable. Specifically, in this process, a difference between a previousvalue (time) of an inner clock and current value of the value (time) ofthe inner clock is obtained, and the result (i.e., a countdown amount)is subtracted from the value represented by the remaining timeinformation to update the remaining time information. Thus, in S3901,the countdown of the remaining period and acquisition of the inner clockvalue, temporary storing the same are executed.

It should be noted that, since S3901 is repeated (at a high speed) aswill be described later, a certain error of the countdown amount of theremaining time information for the inquiry management information newlyadded to the regular inquiry management table between the previouscountdown and the current countdown is allowed. Further, when S3901 isexecuted the first time, the countdown amount may be calculated based onthe value of the inner clock obtained lastly before the MFP 10 waspreviously powered off, or the countdown process may be skipped and onlythe value of the inner clock is stored.

When S3901 is executed, the process selects one of the multiple piecesof the inquiry management information for the subjected device from theregular inquiry management table (S3902). If there is no inquirymanagement information for the target device, that is, if there isunprocessed inquiry management information which is not subjected to theprocess after S3904 (described later) (S3903: NO), and proceeds toS3910. If there is inquiry management information (i.e., unprocessedinquiry information) for the target device (S3903: YES), the processproceeds to S3904. In S3904, the process judges whether a predeterminedinquiry renewal period (retaining period) (i.e., a predetermined periodafter the last regular inquiry signal was transmitted) has elapsed.

If it is determined that the predetermined renewal period has notelapsed (S3904: NO), the process proceeds to S3905, and judges whetherthe inquiry should be made immediately based on the immediate processinformation included in the inquiry management information of the targetdevice. If it is determined that the immediate inquiry is unnecessary(S3905: NO), the process returns to S3902. If it is determined thatimmediate inquiry is necessary (S3905: YES), the process proceeds toS3906.

In S3906, based on the remaining time information contained in theinquiry management information of the selected target device, theprocess judges whether the transmission time of the regular inquiry forthe service of the request service ID corresponding to the inquirymanagement information has come. If the transmission time has not yetcome (S3906: NO), the process proceeds to S3902. It should be notedthat, in S3906, if the remaining time information value is zero ornegative, it is determined that the transmission time has come, whilethe remaining time information value is positive, it is determined thatthe transmission time has not come.

If it is determined that the transmission time has come (S3906: YES),the process judges, based on the used device information contained inthe inquiry management information of the selected target device,whether the input/output device to be used when the servicecorresponding to the inquiry management information is occupied by otherprocess which is being executed in parallel with the current process(S3907).

For example, if the used device information included in the inquirymanagement information of the target device is a “Printer”, the processjudges whether the recording unit 14 is used. If the used deviceinformation is the “Scanner”, the process judges whether the readingunit 14 is being used. Further, if the used device information is the“Speaker”, the process judges whether the audio output unit 18 is used.If the used device information is the “Microphone”, the process judgeswhether the sound input unit 17 is used.

If the multiple input/output devices are indicated in the used deviceinformation, the process judges whether all the multiple devices arebeing used. If at least one of the multiple devices are used, theprocess judges that the input/output device necessary for receiving theservice corresponding to the inquiry management information is used.

If it is determined that the input/output device is being used (S3907:YES), the process proceeds to S3908 and executes the integrated inquiryinformation generating process.

Integrated Inquiry Information Generating Process

FIG. 56 is a flowchart illustrating the integrated inquiry informationgenerating process executed by the control unit 11 of the MFP 10. FIG.57 shows the configuration of the integrated inquiry information. Asshown in FIG. 57, according to the third embodiment, the integratedinquiry information is described with a markup language. The definitionof the tags used in the integrated inquiry information generatingprocess is shown in Table 1.

TABLE 1 Data Name Data Type Description Num_Pattern integer the numberof types of inquiring information Request_Service[ ] array of returninginquiry information of information the same type Request_Status TRUE orFALSE TRUE: status required FALSE: status not required Num_Service_IDinteger the number of inquiring information Response_Service_ID integeridentifier of service

When the integrated inquiry information generating process is executed,the process judges whether the execution of the integrated inquiryinformation generating process is executed a first time after S3901 hasbeen executed (S4001). If it is determined that the execution is thefirst time (S4001: YES), the process proceeds to S4011 and secures anarea used to generate the integrated inquiry information in the RAM, andwrites header information in the secured area (S4012).

According to the third embodiment, since the integrated inquiryinformation is transmitted with the POST command of the HTTP protocol,information related to the protocol, the destination URL, and the likeare written as the header information. It should be noted that thedestination of the integrated inquiry information is preliminarilydetermined, and in the header information, the information of thedestination URL is written.

After execution of S4012, the control unit 11 generates NumPattern tags(i.e., character strings <NumPattern>1</NumPattern>), which are added tothe integrated inquiry information (integrated inquiry informationgenerating area) in S4013. Further, a Request_Service tag is added tothe integrated inquiry information (S4014).

Thereafter, between Request_Service tags (i.e., between<Request_Service> and </Request_Service>), Request_Status tags arewritten based on the inquiry management information request statusinformation (S4015).

For example, when the value of the request status is “FALSE”, the valueof the parameter Request_Status is set to “FALSE”, and Request_Statustags (character string<Request_Status>FALSE</Request_Status>) aregenerated, and stored in the integrated inquiry information.

When S4015 is completed, the process sets the parameter Num_Service_IDto “1”, generates Num_Service_ID tags (i.e., character string of<Num_Service_ID>1</Num_Service_ID>) and writes the same between theRequest_Service tags of the integrated inquiry information (S4016).

When S4016 is finished, the process sets the value of the requestservice ID represented by the inquiry management information of thetarget device to the value of the parameter Request_Service_ID, andgenerates Request_Service_ID tags (i.e., character strings<Request_Service_ID>(request service ID)</Request_Service_ID>), which iswritten between the Request_Service tags in the integrated inquiryinformation (S4017). Thereafter, the process finishes the integratedinquiry information generating process.

If it is determined that the execution of the integral inquiryinformation generating process, after execution of S3901, is the secondexecution or later (S4001: NO), the process judges whether there aretags having the same parameter values (S4021). That is, it is judgedwhether there is the Request_Status tag having the same value as therequest status information contained in the inquiry managementinformation of the target device that has already been stored in theintegral inquiry information.

If it is determined that there is a tag having the same parameter value(Request_Status), the process updates the value of the Num_Service_IDtag which is located between the tag and another tag having sameRequest_Service tag (S4022). For example, when the tag, Num_Service_IDtag in the integral inquiry information is the character string<Num_Service_ID>1</Num_Service_ID> and has not been updated, it isupdated to <Num_Serv_ID>2</Num_Service_ID>.

After S4022, the process sets the value of the request service IDindicated by the inquiry management information of the target device tothe value of the parameter Request_Service_ID, and generatesRequest_Service_ID tags, which are written between the Request_Servicetags of the integrated inquiry information (S4023). Then, the processfinishes the integrated inquiry information generating process.

If it is determined that there are tags having the same parameter values(Request_Status) (S4021: NO), the process proceeds to S4031, and updatesthe value of the parameter NumPattern in the NumPattern tags of theintegrated inquiry information. That is, when the NumPattern tag of theintegrated inquiry information is the character string<NumPattern>1</NumPattern>, the character string is updated to<NumPattern>2</NumPattern>.

When S4031 is executed, the process proceeds to S4032 and writes newRequest_Service tags in an area following the Request_Service tag havingalready been written in the integral inquiry information, and further,between the new Request_Service tags, a Request_Status tag based on thevalue of the request status information contained in the inquirymanagement information of the target device (S4033).

For example, if the value of the request status information is “TRUE”,the process sets the value of the parameter Request_Status to “TRUE”,and generates Request_Status tags (character string<Request_Status>TRUE</Request_Status>) and writes the character stringin the integrated inquiry information.

After executing S4033, the process sets the value of the parameterNum_Service_ID to “1”, generates Num_Service_ID tags (character string<Num_Service_ID>1</Num_Service_ID>), and writes the character stringbetween new Request_Service tags in the integrated inquiry information(S4034).

After execution of S4034, the process generates Request_Service_ID tags,when setting the value of the request service ID indicated by theinquiry management information of the target device as the value of theparameter Request_Service_ID, and writes the tag between the newRequest_Service tags of the integrated inquiry information (S4035).Thereafter, the process finishes the integrated inquiry informationgenerating process, and proceeds to S3902 (see FIG. 55).

After execution of S3902, if it is determined that there is no inquirymanagement information of the target device (that is, the steps afterS3904 are executed for all the inquiry management information indicatedin the regular inquiry management table), the process proceeds to S3910,and judges whether the integrated inquiry information has beengenerated. If the integrated inquiry information has been generated, theprocess generates a regular inquiry signal storing the integratedinquiry in the integrated inquiry information generating area of theRAM, and transmits the regular inquiry signal to the function server 30of the destination through the communication unit 15 (S3911). Then, theprocess returns to S3901.

If it is determined that the integral inquiry information has not beengenerated (i.e., S3908 has not been executed) (S3910: NO), the processproceeds to S3901 without executing S3911, and re-executes counting downof the remaining time period.

Regular Inquiry Replying Process

Next, a regular inquiry replying process executed by the function server30 that receives the regular inquiry signal transmitted from the MFP 10in S3911 will be described. FIG. 58 is a flowchart of the regularinquiry replying process executed by the control unit 31 of the functionserver 30. The regular inquiry replying process is executed continuouslyduring operation of the function server 30.

When the inquiry replying process is executed, the process pauses untilit receives the regular inquiry signal from the MFP 10 (S4101). When theprocess receives the regular inquiry signal, the process selects onerequest service ID to be processed from among the integrated inquiryinformation included in the regular inquiry signal (S4102).

If the request service ID to be processed is not included, that is, ifthe unprocessed request service ID is not included in the regularinquiry signal (S4103: NO), the process proceeds to S4115. If there areunprocessed request service IDs (S4103: YES), the process proceeds toS4104. In S4104, the process secures, in the RAM, a regular inquiryreplying information generating area used for generating the regularinquiry replying information representing the reply to the requestservice ID, and the request service IDs to be processed are stored asthe value of the parameter Request_Service_ID in the regular inquiryreplying information generating area.

Next, the process searches for the reply management informationcorresponding to the request service ID to be processed in the replymanagement table stored in the storage unit 33 (S4105). If the requestservice ID has not been searched, the process determines that the replymanagement information corresponding to the request service ID to beprocessed is not included in the regular inquiry replying managementtable (S4106: NO), and proceeds to S4107. Then, the process writes, inthe above-described regular inquiry replying information generatingarea, “TRUE” as the value of the parameter Service_Canceled. Further,the process writes, as the value of the parameter Service_Start,“FALSE”. When S4107 has been finished, the process proceeds to S4114,where the integrated reply information generating process, which isshown in FIG. 55, is executed.

If the reply management information corresponding to the request serviceID to be processed can be identified (searched) in the regular inquiryreply management table stored in the storage unit 33 (S4106: YES), theprocess stores the value of the service start information contained inthe reply management information corresponding to the request service IDto be processed, as the parameter Service_Start, in the regular inquiryreplying information generating area (S4108).

When S4108 is executed, the process proceeds to S4109, where the processwrites the value of the service cancel information contained in thereply management information corresponding to the request service ID tobe processed as the value of the parameter Service_Canceled.

When S4109 is executed, the process proceeds to S4110. In S4110, theprocess judges whether the value of the parameter Service_Start writtenin the regular reply information generating area is “TRUE”. If it isdetermined that the value of the parameter Service_Start is “TRUE”(S4110: YES), the process proceeds to S4111, where the process storesthe value (character string) of the service URL information, which thereply management information includes, in the regular inquiry replyingarea as the value of the parameter Service_URL (S4111). Then, theprocess proceeds to S4112.

If it is determined that the value of the parameter Service_Startwritten in the regular inquiry replying information generating area isnot “TRUE” (i.e., is “FALSE”), the process proceeds to S4112 withoutexecuting S4111.

In S4112, the process judges whether the value of the Request_Status tag(the Request_Status tag between the Request_Service tags where therequest service ID to be processed is described) is “TRUE”. If the valueis “TRUE” (S4112: YES), the process proceeds to S4113. In S4113, theprocess writes the value of the service status information contained inthe reply management information corresponding to the request service IDto be processed, as the value of the parameter Service_Status, in theregular inquiry reply information generating area.

If it is determined that the value of the Request_Status which isrelated to the request service ID to be processed in the integratedreply information is not “TRUE” (i.e., is “FALSE”) (S4112: NO), theprocess proceeds to S4114 without executing S4113.

Integrated Reply Information Generating Process

In S4114, the control unit 31 executes the integrated reply informationgenerating process. FIG. 59 shows a flowchart of the integrated replyinformation generating process executed by the control unit 31. FIG. 60is a flowchart illustrating a reply judgment process called in theintegrated reply information generating process. FIG. 61 shows aconfiguration of the integrated reply information. The integrated replyinformation is described using the markup language as shown in FIG. 61.The definition of the tags used in the integrated reply information isexplained in Table 2.

TABLE 2 Data Name Data Type Description Num_Pattern integer the numberof types of returning information Response_Service[ ] array of returningreturning information information of the same type Service_Start TRUE orFALSE TRUE: ready to provide service FALSE: not ready to provide serviceService_URL URL character address of service program string to start theservice Service_Status integer status number (error: negative)Service_Canceled TRUE or FALSE TRUE: service stopped FALSE: service notstopped Num_Service_ID integer the number of returning informationResponse_Service_ID integer identifier of service

When the integrated reply information generating process is started, theprocess judges whether the process is executed a first time after theregular inquiry signal has been received in S4101. If the execution isthe first time (S4201: YES), the process proceeds to S4211, where theprocess secures an integrated reply information generating area forgenerating the integrated reply information in the RAM, and writes theheader information in the integrated reply information area (S4212).

After execution of S4212, the process generates NumPattern tags(character string <NumPattern>1</NumPattern>) with the value of theparameter NumPattern being one (1), and add the tags to the integratedreply information (i.e., integrated reply information generating area ofthe RAM) in S4213. Further, the process adds the Response_Service tag inthe integrated reply information (S4214). Thereafter, the processexecutes the reply judgment process (see FIG. 60).

When the reply judgment process is executed, the control unit 31 judgeswhether the value of the parameter Service_Start represented by theregular inquiry reply information (i.e., the information written in theregular inquiry reply information generating area) corresponding to therequest service to be processed is “TRUE” in S4301. If it is determinedthat the value of the parameter Service_Start is “TRUE” (S4301: YES),the process determines that reply is OK (S4304).

If it is determined that the value is not “TRUE” (S4301: NO), theprocess proceeds to S4302, and judges whether the parameterService_Canceled represented by the regular inquiry reply information is“TRUE” (S4302).

If it is determined that the value of the parameter Service_Canceled is“TRUE” (S4302: YES), the process proceeds to S4304, and determines thatthe reply is OK. If it is determined that the parameter Service_Canceledis not “TRUE” (S4302: NO), the process proceeds to S4303 and judgeswhether the value of the parameter Service_Status is included in theregular inquiry reply information. If it is determined that theparameter value exists (S4303: YES), the process proceeds to S4304, anddetermines that the reply is OK. If it is determined that the parametervalue is not included in the regular inquiry reply information, theprocess proceeds to S4305, determines that reply is NG, and finishes thereply judging process.

When the reply judgment process is finished in S4215, the processjudges, in S4216 (FIG. 59), whether the judgment in the reply judgmentprocess is “reply OK”. If the result is not “OK” (i.e., “reply NG”)(S4216: NO), the process finishes the integrated reply informationgenerating process. If the result is “reply OK” (S4216: YES), theprocess proceeds to S4217.

In S4217, the process writes the Service_Start tag between theResponse_Service tags (i.e., between <Response_Service> and</Response_Service>) based on the regular inquiry replying informationcorresponding to the request service ID to be processed (i.e., theinformation stored in the regular inquiry reply information generatingarea).

For example, if the value of the parameter Service_Start of the regularinquiry reply information is “TRUE”, as the Service_Start tag, thecharacter string <Service_Start>TRUE</Service_Start> is generated, andstored in the integrated reply information.

When S4217 is executed, the process writes the Service_URL tag betweenthe Response_Service tags based on the regular inquiry reply informationcorresponding to the request service ID to be processed in S4218. Itshould be noted that, if the value of the parameter Service_URL is notincluded in the regular inquiry reply information, the process generatesa character string <Service_URL></Service_URL> as the Service_URL tags,and if the value of the parameter Service_URL exists, the processgenerates the Service_URL tags having the value, and writes the same inthe integrated reply information.

When S4218 is executed, the process writes the Service_Status tagbetween the Response_Service tags based on the regular inquiry replyinformation corresponding to the request service ID to be processed(S4219).

In this case, if the value of the parameter Service_Status does notexist in the regular inquiry reply information the process generates acharacter string <Service_Status></Service_Status> as the Service_Statustags, and if there is a value for the parameter Service_Status,generates the Service_Status tags with the value being described, andwrite the tags in the integrated reply information.

After execution of S4219, the process writes the Service_Canceled tagsbetween the Response_Service tags based on the regular inquiry replyinformation corresponding to the request service ID corresponding to therequest service ID to be processed (S4220).

For example, when the value of the parameter Service_Canceled of theregular inquiry reply information is “FALSE”, the process generates thecharacter string <Service_Canceled>FALSE</Service_Canceled> as theService_Canceled tags, and stores the same in the integrated replyinformation.

When S4220 is executed, the process generates Num_Service_ID tags(character string <Num_Service_ID>1</Num_Service_ID>) with the value ofthe parameter Num_Service_ID being one (1). The Num_Service_ID tag iswritten between the Response_Service tags of the integrated replyinformation (S4221).

When S4221 is executed, the process proceeds to S4222, where the processgenerates the Request_Service_ID tags (i.e., the character string<Request_Service_ID>(request service ID)</Request_Service_ID) using thevalue of the request service ID to be processed as the value of theparameter Request_Service_ID. Then, the Request_Service_ID tags arestored between the Response_Service tags in the integrated replyinformation. Then, the process finishes the integrated reply informationgenerating process.

If it is determined that execution of the integrated reply informationgenerating process is the second time or later (S4201: NO), the processexecutes the reply judgment process in S4225 (see FIG. 60), and judgeswhether the result of the reply judgment process is OK (i.e., reply OK)(S4226). If it is determined that the result is not OK (i.e., reply NG)(S4226: NO), the process finishes the integrated reply process.

If it is determined that the result is “reply OK” (S4226: YES), theprocess proceeds to S4227, and judges whether the Response_Service taghaving the parameter value that is the same as the regular inquiry replyinformation of the request service ID to be processed exists. That is,it is judged whether there is Response_Service tag having a value whichis the same as the information other than the request service IDcontained in the regular inquiry reply information of the requestservice ID to be processed (e.g., values of the parametersService_Start, Service_URL, Service_Status, Service_Canceled).

If it is determined that there is a Response_Service tag having the sameparameter values, the process updates the value of the Num_Service_IDtags between the Response_Service tags (S4228). For example, if theNum_Service_ID tags before updated are represented by the characterstring <Num_Service_ID>1</Num_Service_ID>, the character string isupdated to <Num_Service_ID>2</Num_Service_ID>.

After executing S4228, the process generates the Request_Service_ID tagsusing the value of the request service ID to be processed as the valueof the parameter Request_Service_ID, and stores the same between theResponse_Service tag which has the same parameter value (S4229).Thereafter, the integrated reply information generating process will befinished.

If it is determined that there is no Response_Service tag having thesame parameter values (S4227: NO), the process proceeds to S4231, andupdates the value of the parameter NumPattern of the NumPattern tag ofthe integrated reply information. For example, when the NumPattern tagof the integrated reply information is a character string<NumPattern>1</NumPattern>, the process updates the character string to<NumPattern>2</NumPattern>.

It should be noted that, in S4231, if the integrated reply informationincludes a null Response_Service tag (e.g., when S4231 is executed firsttime after the judgment in S4216 is “NO”), the value of the parameterNumPattern is not updated, as an exception.

When S4231 is executed, the process proceeds to S4232, and writes newResponse_Service tags in an area following the Response_Service tagsalready included in the integrated reply information. It should be notedthat, when S4232 is executed, if the integrated reply informationincludes a null Response_Service tag, the new Response_Service tag willnot be written as an exception.

When S4232 is executed, the process proceeds to S4233, where the processwrites the Service_Start tags between the new Response_Service tag (nullResponse_Service tag) based on the regular inquiry reply informationcorresponding to the request service ID to be processed.

For example, if the value of the parameter Service_Start in the regularinquiry reply information is “FALSE”, the process generates a characterstring <Service_Start>FALSE</Service_Start>, which will be written inthe integrated reply information.

When S4233 is executed, the process writes the Service_URL tags betweenthe Response_Service tags (S4234), based on the regular inquiry replyinformation corresponding to the request service ID to be processed.Further, the process writes the Service_Status tags between theResponse_Service tags (S4235) based on the regular inquiry replyinformation corresponding to the request service ID to be processed.

When S4235 is executed, the process writes the Service_Canceled tagsbetween the Response_Service tags (S4235) based on the regular inquiryreply information corresponding to the request service ID to beprocessed. Then, the process sets the value of the parameterNum_Service_ID to “1” and generates the Num_Service_ID tags, and writesthe same between the Response_Service tags in the integrated replyinformation (S4237).

When S4237 is executed, the process generates the Request_Service_IDtags using the value of the request service ID to be processed as thevalue of the parameter Request_Service_ID, and writes the same betweenthe Response_Service tags of the integrated reply information (S4238).Then, the process finishes the integrated reply information.

As above, the integrated reply information generating process isexecuted in S4114 (FIG. 58), the process proceeds to S4102 and selectsthe next subject (unprocessed request service ID) from among theintegrated inquiry information. If there is no unprocessed requestservice ID, the process proceeds to S4115, and generates the responsesignal containing integrated reply information stored in the integratedreply information. The information is transmitted to the MFP 10 that isthe source of the regular inquiry signal, via the communication unit 32.Then, the process proceeds to S4101, where the process pauses until thenext regular inquiry signal is received.

Blog Searching Process

Next, a blog searching process which generates information to beprovided to a registered MFP 10 will be described. FIG. 62 is aflowchart illustrating the blog searching process executed by thecontrol unit 31 of the function server 30. The blog searching process isrepeatedly executed at every predetermined period during operation ofthe function server 30.

When the blog searching process is executed, the process selects one ofthe request service IDs to be processed from the request service IDmanagement table corresponding to the blog searching service. It shouldbe noted that if there is no request service IDs in the request serviceID management table (i.e., there is no request service IDs to beprocessed in the processing after S4403), the judgment in S4402 is NO,and the process finishes the blog searching process.

If there are request service IDs to be processed (i.e., unprocessed),the judgment in S4402 is YES. In this case, the process sets the servicestatus information, which is included in the reply managementinformation in the regular inquiry reply management table correspondingto the request service ID to be processed to “FALSE” (S4403).

Then, the process sets the value of the parameters which are stored, inrelation to the request service IDs to be processed, in the requestservice ID management table as keywords, accesses a predetermined blogsite, and searches for posted articles containing the keywords fromamong news articles (S4404).

If an error occurs during the search as the values of the parametersstored in the request service ID management table are inappropriate(S4405: YES), the process updates the service cancel informationcontained in the reply management information in the regular inquiryreply management table corresponding to request service ID to beprocessed to “TRUE” (S4406).

Further, the process obtains the value of the service statuscorresponding to the cause of the error, and the obtained value isreflected in the service status information in the regular inquiry replymanagement table corresponding to the request service ID to be processed(S4407). Thereafter, the process proceeds to S4401, and selects anunprocessed request service ID from the request service ID managementtable.

If the searching operation in S4404 has been finished normally (S4405:NO), the process proceeds to S4408, and determines whether newly postedarticles are found in the blog site as a result of the search. If thereis no newly posted article, the process proceeds to S4401.

If a newly posted article includes one of the above-set keywords isfound (S4408: YES), the process proceeds to S4409 and generatesproviding data indicating the contents of the posted article. Then, theproviding data is stored in the storage unit 33. Further, the processproceeds to S4410, where the process generates a URL (e.g., a characterstring such as “http://****.co.jp/cgi/blog?F=*****”) from which theproviding data can be downloaded. Further, the service URL informationcorresponding to the request service ID to be processed in the regularinquiry reply management table is updated to the above-described URLinformation from where the data can be downloaded (S4411).

When S4411 is executed, the process changes service status informationcorresponding to the request service ID to be processed in the regularinquiry reply management table is changed to the value “TRUE” (S4412).Thereafter, the process proceeds to S4401, and selects one ofunprocessed request service IDs. When, for all the request service IDsindicated in the request service ID management table, the processingafter S4403 is executed, the judgment in S4402 becomes “NO”, and theprocess finishes the blog search process.

Local News Providing Service

Next, a local news providing service will be described. FIG. 63 shows aflowchart illustrating a news information generating process to beexecuted by the control unit 31 of the function server 30. The newsinformation generating process is repeatedly executed, during operationof the function server 30, at every predetermined interval.

When the news information generating process is executed, the processselects a request service ID from the request service ID managementtable corresponding to the local news providing service (S4501). Ifthere is no request service ID to be processed, that is, if there is nounprocessed request service ID that is not subjected to be processed inS4503, the judgment in S4502 becomes “NO”, and the process finishes thenews information generating process.

If there are request service IDs to be processed (i.e., if there areunprocessed request service IDs), the judgment in S4502 is “YES”, andthe process updates the service status information included in the replymanagement information in the regular inquiry reply management table to“FALSE” (S4503).

Thereafter, the process judges whether the values of the parametersstored in the request service ID management table in relation to therequest service have inappropriate values (S4504). If the values areinappropriate (S4504: NO), it is determined that an error has occurred.In such a case, the process updates the service cancel information inthe regular inquiry reply management table corresponding to the requestservice ID to be processed to have the value of “TRUE” (S4505).

Further, the process detects the value of the service statuscorresponding to the cause of the error, and reflects the detected valueto the service status information in the regular inquiry replymanagement table corresponding to the request service ID to be processed(S4506). Then, the process proceeds to S4501, and selects an unprocessedrequest service ID from the request service ID management table.

If it is determined that the value of each parameter is not aninappropriate value (i.e., appropriate value) (S4504: YES), processproceeds to S4507, and the process obtains local news data which meetsthe value of the parameter Address (see FIGS. 44, 51A and 51B) stored inthe request service ID management table in relation to the requestservice ID to be processed from predetermined database (not shown).After S4507 is executed, the process proceeds to S4508 and converts thelocal news data obtained above into providing data (e.g., PDF data)having the number of pages that meets the parameter NumPages (see FIGS.44, 51A, 51B), thereby generating the providing data. Then, the processstores the providing data in the storage unit 33.

After S4508 is executed, the process generates the URL information ofthe location from which the providing data, stored above, can bedownloaded (S4509), and changes the service URL informationcorresponding to the request service ID to be processed in the regularinquiry reply management table into the URL information from which thedata can be downloaded, which is generated above (S4510).

When S4510 is finished, the process changes the service statusinformation corresponding to the request service ID to be processed inthe regular inquiry reply management table to “TRUE” (S4511). Then, theprocess proceeds to S4501, and selects an unprocessed request service IDfrom the request service ID management table. When the steps after S4503are executed for all the request service IDs listed in the requestservice ID management table, judgment in S4502 is “NO”, and the newsinformation generating process is finished.

Integrated Reply Information Receiving Process

Next, an integrated reply information receiving process for receivingthe integrated receiving information and receiving a service based onthe integrated reply information will be described. FIG. 64 is aflowchart illustrating the integrated reply information receivingprocess executed by the control unit 11 of the MFP 10.

When the integrated reply information receiving process is executed, thecontrol unit 11 pauses (S4601) until it receives a reply signal(integrated reply information), in response to the regular inquirysignal, transmitted from the function server 30 via the communicationunit 15. When the process receives the reply signal, the process selectsone request service ID to be processed from the integrated replyinformation included in the reply signal as received (S4602). If thereis no request service ID to be processed (i.e., if there is nounprocessed request service ID which is not subjected to be processed insteps S4604 onwards), judgment in S4603 is “NO”, and the processproceeds to S4606. If there is unprocessed request service ID, judgmentin S4603 is “YES” and the process proceeds to S4604.

When the process proceeds to S4604, the process judges whether the valueof the parameter Service_Status is included in the Service_Status tagsdescribed in the integrated reply information. That is, the processjudges whether the value of the parameter Service_Status is describedbetween the Response_Status tags that are described between theResponse_Service tags including the request service ID to be processed.

If it is determined that the parameter Service_Status has no values(i.e., <Service_Status></Service_Status>, the process proceeds to S4602.If the parameter Service_Status has a value, the process proceeds toS4605, and displays the status information corresponding to the value ofthe parameter Service_Status on the display 19 a of the display unit 19.Thereafter, the process proceeds to S4602, selects another unprocessedrequest data ID to be processed, and executes steps S4604 onwards again.

When, for all the request service IDs described in the integrated replyinformation, the process in S4604 onwards is executed, the processdetermines “NO” in S4603, and proceeds to S4606. Then, for all therequest service IDs related to the Service_Start tags in which “TRUE” isdescribed, the process judges whether the service corresponding to therequest service ID is received from the function server 30.

If there is a request service ID that has not received the service fromthe function server 30 within the request service IDs related to theService_Start tags in which “TRUE” is described, the decision in S4606is “NO” and the process proceeds to S4607. Then, the process selects oneof the request service IDs to be processed in the integrated replyinformation.

If there is no request service ID to be processed, such that is nounprocessed request service ID is subjected to the process in S4609onward, the judgment in S4608 is “NO”, and the process proceeds toS4606. If there is unprocessed request service ID, the judgment in S4608is “YES” and the process proceeds to S4609.

If it is determined that the value “TRUE” is not described in theService_Start tags (S4609: NO), the control unit 11 proceeds to S4607.If it is determined that the value “TRUE” is described in theService_Start tags (S4609: YES), the process proceeds to S4610. InS4610, the process judges whether input/output devices (e.g., readingunit 13, recording unit 14, sound input unit 17, sound output unit 18)to be used when the process receives the service corresponding to therequest service ID to be processed from the function server 30 are beingused based on the device information in the regular inquiry managementtable.

If it is determined that the input/output devices are being used (S4610:YES), the process proceeds to S4607. If the input/output devices are notbeing used (S4610: NO), the process proceeds to S4611, where the processsets the value of the Service_URL tags of the integrated replyinformation related to the request service ID to be processed toarguments, and starts up the service reception process (FIG. 46).

Thereafter, the process proceeds to S4607, selects the unprocessedrequest service ID from the integrated reply information. If the value“TRUE” is described in the Service_Start tags described in the integralreply information related to the request service ID, in parallel withthe service receiving process previously started up, another servicereceiving process is started up. It should be noted, however, theparallel processing is done only when the judgment in S4610 is “NO”.That is, the parallelly executed process is a process using aninput/output device different from one currently used for the receivingservice.

That is, in S4607 through S4611, services corresponding to the requestservice ID in which the value “TRUE” is described and using differentinput/output devices can be executed parallelly.

On the contrary, the service receiving processes using the sameinput/output devices, the judgment in S4608 is “NO”, and the judgment inS4606 is “NO”, and the process after S4607 is executed, thereby,multiple processes being executed subsequently.

If, for all the request service IDs related to the Service_Start tagsincluding the value “TRUE”, the services corresponding to the requestservice IDs are received from the function server 30 (i.e., the servicereceiving processes are started), the judgment in S4606 is “YES” and thecontrol unit 11 proceeds to S4601. Then, the process pauses until thenext integrated reply information is received.

Next, the process regarding provision of the service executed in thefunction server 30 will be described. The control unit 11 of the MFP 10processes the request service ID corresponding to the blog searchingservice or local news providing service, and when the control unit 11starts the service receiving process in S4611, the control unit 11 canaccess the function server 30 based on the service URL information, andhave the function server 30 execute the regular service providingprocess shown in FIG. 65 (S3301). Here, FIG. 65 is a flowchartillustrating the regular service providing process. It should be notedthat, according to the third embodiment, in the service URL information,the URL information of the function server 30 (e.g., the URL informationof the function server 30 when the regular service providing processshown in FIG. 65 is started at S3405 of FIG. 48), by which the regularservice providing process for realizing the blog searching service andlocal news providing service are executed, is described.

As the regular service providing process is executed, the control unit31 executes the initialization in S4701, and starts up the service-sideprint job (see FIG. 66) in S4702. Next, in S4703, the control unit 31outputs the “print job startup instruction” as the MFP instruction.Specifically, in the reply information storage area corresponding to thesession ID generated in S3405, the “print job startup instruction” iswritten.

With the above processing, the “print job startup instruction” istransmitted to the MFP 10, via the service control information process,as the MFP instruction. In the “print job startup instruction”, the jobID and job communication URL regarding the service-side print jobstarted up in S4702 are included.

When S4703 is executed, the control unit 31 proceeds to S4704, andjudges whether it receives the print preparation completion notificationfrom the service-side print job. If the notification has not beenreceived (S4704: NO), the process proceeds to S4705, and judges whetherit has received termination notification from the service-side printjob. If the termination notification has not been received (S4705: NO),the process is returned to S4704, to pause until the preparationnotification or termination notification is received from theservice-side print job. If the process receives the terminationnotification (S4705: YES), the process proceeds to S4708. If the printready notification is received (S4704: YES), the process proceeds toS4706.

In S4706, the control unit 31 retrieves the providing data for download,which is designated with the URL information from the MFP 10 side whenthe regular service providing process is started. Then, the retrievedproviding data is converted into the print data suitable to the functionof the recording unit 14 of the MFP 10. Then, the control unit 31provides the converted print data to the service-side print job. Then,the converted print data is transmitted to the MFP 10 which has accessedthe function server 30 via the service-side print job (S4707).

When S4707 is executed, the control unit 31 proceeds to S4708, andpauses unit the service-side print job is finished. When the print jobis finished, the control unit 31 outputs the “print job completioninstruction” as the MFP instruction. Specifically, the control unit 31writes the “print job completion instruction” in the reply informationstorage area corresponding to the session ID generated in S3405.

With the above operation, the “print job completion instruction” istransmitted to the MFP 10 as the MFP instruction via the service controlinformation process. It should be noted that the “print job completioninstruction” includes the job ID and job communication URL.

When the “print job completion instruction” has been output, the controlunit 31 proceeds to S4709 and output “service completion instruction” asthe MFP instruction. Then, the “service completion instruction” isreceived by the MFP 10. When S4709 is finished, the control unit 31 ofthe function server 30 finishes the regular service providing process.

Service-Side Print Job

Next, the service-side print job executed in S4702 of FIG. 65 will bedescribed. FIG. 66 shows a flowchart of the service-side print job,which is executed by the control unit 31 of the function server 30. Theservice-side print job can be executed in parallel with other processes.

When the service-side print job is started, the control unit 31 pausesuntil the “MFP status information” is received from the MFP 10 (S4801).It should be noted that the “MFP status information” is transmitted inS4904 of the output job (described later) shown in FIG. 67 executed bythe control unit 11 of the MFP 10.

When the process receives the “MFP status information”, the processproceeds to S4802 and initializes the error count. Further, the processtransmits the parameters to be set in the recording unit 14 (S4803).

After execution of S4803, the control unit 31 proceeds to S4804 andjudges whether the MFP parameters have been normally received by the MFP10. Specifically, in the output job (FIG. 67) executed by the controlunit 11 of the MFP 10, the “MFP reception status” is transmitted. If theMFP 10 has transmitted the “normal reception” in S4909 as the “MFPreception status”, the control unit 31 determines that the MFPparameters have been received normally. On the other hand, if the MFP 10has transmitted the “abnormal reception” in S4908, the control unit 31determines that the MFP parameters have not been received by the MFP 10normally.

If it is determined that the MFP parameters have not been normallyreceived by the MFP 10 (S4804: NO), the control unit 31 proceeds toS4805. In S4805, the control unit 31 determines whether the number oftimes when the MFP parameters have not been normally received by the MFP10 is two, which is detected based on the value of the error countinitialized in S4802.

If the number of times is not two (i.e., one) (S4805: NO), the processproceeds to S4806, and increments the error count by one, and theprocess returns to S4803. If the number of times is two (S4805: YES),the process proceeds to S4807, and notifies the process that started thecurrent service-side print process (i.e., the regular service providingprocess) of the termination of the print job. Then, in S4811, theprocess determines the abnormal completion (S4811: NO), and transmitsthe abnormal completion as the service status information to the MFP 10in S4812, and finishes the service-side print job.

If it is determined that the MFP parameters have been received normally(S4804: YES), the process proceeds to S4808 and notifies the processthat started the current process (i.e., the regular service providingprocess) of the print preparation completion. Then, in S4809, the printdata generated in S4706 is transmitted to the MFP 10 subsequently.

When S4809 is executed, the control unit 31 pauses in S4810 until the“MFP status information” is received from the MFP 10. When the “MFPstatus information” is received, the process proceeds to S4811. Itshould be noted that the “MFP status information” is transmitted inS4913 of the output job (FIG. 67) executed by the control unit 11.

In S4811, the control unit 31 judges whether the print data transmissionhas completed normally. If it is determined that the transmission hasnot completed normally (S4811: NO), the process proceeds to S4812. Ifthe transmission has completed normally (S4811: YES), the processproceeds to S4913. In S4812, the abnormal completion is notified to theMFP 10 as the service status information. In S4813, the normalcompletion is notified to the MFP 10 as the service status information.

Output Job

Next, an output job which is executed by the control unit 11 of the MFP10 in S3356 in response to the “print job startup instruction” output inS4703 of the regular service providing process will be described. FIG.67 shows a flowchart of the output job executed by the control unit 11of the MFP 10.

When the output job is started, the control unit 11 judges whetheroutput devices (recording unit 14 when the print job startup instructionis received; and sound output unit 18 when the speaker job startupinstruction is received) are busy in S4901. Specifically, based on thebusy flag Fo indicating whether the output device is busy, the controlunit 11 makes a judgment. Specifically, when the busy flag Fo is set,the control unit 11 determines that the output device is busy, while,when the busy flag Fo is released, the control unit 11 determines thatthe output device is not busy.

If the output device is determined to be busy, the control unit 11proceeds to S4902 and pauses until the busy state of the output deviceis released. Thereafter, the control unit 11 returns to S4901. If it isdetermined that the output device is not busy (S4902: NO), the controlunit 11 proceeds to S1903 and sets the busy flag Fo. Then, the controlunit 1 transmits the “MFP status information” to the function server 30(S4904). It should be noted that the “MFP status information”transmitted in S4904 includes the session ID and job ID.

After S4094 is executed, the control unit 11 proceeds to S4905, andreceives the MFP parameters that are transmitted from the functionserver 30 as a response signal to the “MFP status information”. Itshould be noted that the MFP parameters are transmitted in S4803 of theservice-side print job executed by the control unit 31 of the functionserver 30.

After S4095, the control unit 11 judges, in S4906, whether thecompletion instruction is received from the service reception process,which started the current process. It should be noted that thecompletion instruction is output in S3310 of the service receptionprocess (FIG. 46) executed by the control unit 11 of the MFP 10. If itis determined that the completion instruction has not been input, thecontrol unit 11 proceeds to S4907, and judges whether the MFP parametershave been received normally in S4905.

If it is determined that the MFP parameters have not been receivednormally (S4907: NO), the control unit 11 proceeds to S4908. In S4908,the control unit 11 transmits “abnormal reception” as an “MFP receptionstatus” which is an indication whether the MFP 10 have received datafrom the function server 30 normally. Then, the control unit 11 proceedsto S4905. It should be noted that the “MFP reception status” includesthe session ID and job ID.

If it is determined that the MFP parameters have been received normally(S4907: YES), the control unit 11 proceeds to S4909, and transmits“normal reception” as the “MFP reception status” to the function server30. Next, in S4910, the control unit 11 receives the output data (printdata or sound data) from the function server 30. It should be noted thatthe print data is transmitted from the function server 30 as the controlunit 31 executes the service-side pint job process (FIG. 66: S4809).

When S4910 is finished, the control unit 11 proceeds to S4911, and setsthe MFP parameters to the output device (recording unit 14 or the soundoutput unit 18) to output the output data.

For example, if the output job is started in response to the “print jobstartup instruction” output by the function server 30 in the regularservice providing process, the recording unit 14 is used as the outputdevice, and a print process is executed based on the print data suppliedfrom the function server 30.

For example, if the regular service providing process is a process forproviding the blog searching service to the MFP 10, and the output jobis a process for receiving the blog searching service, the postedarticles searched by the blog searching process is printed out using therecording unit 14.

For another example, if the regular service providing process is aprocess for proving the local news providing service to the MFP 10, andthe output job is a process for receiving the local news providingservice, the information based on news data generated by a newsinformation generating process may be printed out through the recordingunit 14.

When S4911 is executed, the control unit 11 restores the parameters setto the output device in S4911 to the original values (S4912), andtransmits the “MFP status information” to the function server 30(S4913). After S4913, the control unit 11 proceeds to S4914, andreceives the “service status information” from the function server 30.Then, in S4915, the control unit 11 releases the busy flag Fo that wasset in S4903, and finishes the output job.

The communication system according to the third embodiment has beendescribed. According to the communication system described above, byexecuting the HTTP communication between the function server 30 and MFP10 (as a client device), multiple services (e.g., blog searchingservice, local news providing service) can be provided from the functionserver 30 to the MFP 10.

The function server 30 is configured to provide multiple types ofservices, which can be provided periodically. The MFP 10 is configuredto have information regarding timing of inquiry of each service(specifically, each request service ID). As the information representingthe inquiry, the MFP 10 includes the inquiry interval information,remaining time information, immediate execution information, which arestored in a regular inquiry management table. Based on the inquiryinterval information, remaining time information and immediate executioninformation, the MFP 10 can judge whether the regular inquiry signal isreceived for each service provided by the function server 30 inS3904-S3906. When it is determined that the transmission time has come(S3906: YES), in S3908, an integrated inquiry information including therequest service IDs which are identification information of the servicesavailable is generated, and transmitted to the function server 30(S3911) via the communication unit 15.

Further, when the MFP 10 receives the response signal to the regularinquiry signal from the function server 30 via the communication unit15, it judges whether the parameter Service_Start of the request serviceID described in the integrated reply information included in theresponse signal is “TRUE”, thereby judging whether the servicecorresponding to the request service ID is ready on the function server30 (S4609). If the function server 30 is ready to provide a service, theMFP 10 can execute a necessary service reception process to receive theservice from the function server 30.

The function server 30 is configured to receive the regular inquirysignal regarding multiple types of services, which is transmitted fromthe MFP 10 through the communication unit 32 (S4101). Further, when thefunction server 30 has received the regular inquiry signal, based on therequest service ID included in the received signal, the regular inquiryreply information is generated, and by collecting the regular inquiryreply information, the integral reply information is generated (S4114).Then, the response signal containing the integrated reply information istransmitted to the MFP 10 (S4115), which is the source of the inquiry.

As above, according to the communication system described above, whenthere are inquiries, the information regarding the inquiries arecollected into an integrated inquiry signal and transmitted to thefunction server 30. Therefore, in comparison with a case where therespective inquiry signals are generated and transmitted, the networktraffic can be suppressed, and the inquiry can be made efficiently.Further, replies to inquiries can be integrated into the integratedreply information. Therefore, the reply can also be made efficiently.

Further, according to the third embodiment, in S3904, elapse of apredetermined renewal time is monitored, and in S3905, based on theimmediate execution period information, each device for each service,judges whether the inquiry should be made immediately. Further, inS3906, based on the remaining time information stored in the regularinquiry table, each device can judge whether the inquiry time has come.

In S3906, if there is not a service for which the inquiry time has come,the regular inquiry signal is prevented from being transmitted (S3911),and when there are services for which the inquiry time has come, andwhen the renewal time has passed, the regular inquiry is transmitted(S3911).

Therefore, according to the communication system, the inquiry can bemade efficiently using the integrated inquiry information, and further,for the service requiring the immediate inquiry, it is also done.

According to the communication system described above, the requestservice ID of a subjective service is collectively described based onthe values of the parameter, and for the collectively described requestservice IDs, the parameter values are described in a related manner toform the integrated inquiry information. Therefore, according to thethird embodiment, it is not necessary to describe the parameter valuesby multiple times, which reduces the amount of the data of the inquiryinformation and can suppress the network traffic.

Further, in the communication system according to the third embodiment,request service IDs having the same values of the parametersService_Start, Service_URL, Service_Status, Service_Canceled arecollectively described and further the values of the parameters aredescribed in relation to the collectively described IDs to generate theintegrated reply information. Therefore, according to the thirdembodiment, the amount of data of the integrated reply information canbe suppressed, and the network traffic can be suppressed.

According to the third embodiment, information regarding the servicesthat respond predetermined parameter (Response_Service) is stored in theintegrated reply information and the response signal is transmitted.Further, information regarding the service related to a differentresponse is not included in the response signal. Therefore, the dataamount of the response signal can be suppressed efficiently, and thenetwork traffic can be suppressed.

According to the third embodiment, the service provided by the functionserver 30 is received by the MFP 10, which uses the reading unit 13,recording unit 14, sound input unit 17 and sound output unit 18. One ormore of such units is used when the service is provided by the functionserver 30. According to the third embodiment, if an input/output devicefor executing a service is busy, the request service ID corresponding tothe busy device is not included in the integrated inquiry information.Therefore, only the available services are included in the integratedinquiry information with the input/output devices necessary forexecuting the services. Thus, the regular inquiry can be made veryefficiently.

According to the third embodiment, services are executed in parallel asfar as the input/output devices are used separately (i.e., oneinput/output device being used only in one service). If a device is tobe used in multiple services, by executing S4607-S4611 until S4606 is“YES”, the services are executed serially.

Therefore, via the MFP 10, the services can be provided to the userefficiently.

In the above description, the “speaker job startup instruction” is notdescribed in detail. However, the algorithm for the speaker job and thatof the print job are substantially the same, and only by replacing“print” and “print data” with “speaker” and “sound data” in FIGS. 65 and66, the speaker job startup instruction can be understood.

In the above description, the service of the function server 30outputting the “input job startup instruction” is not described indetail. The regular service providing process of the function server 30outputting the input job start up instruction transmits the input jobstartup instruction to the MFP 10. Then, the MFP 10 executes an inputjob using an input device (e.g., reading unit 13 or sound input unit17). Then, the function server 30 receives data from the MFP 10, whichgenerates the data using the reading unit 13 or sound input unit 17.

The communication system according to the third embodiment can bemodified in various ways without departing from the scope of theinvention.

For example, in the third embodiment, for the request service IDs havingthe same parameter values, for a group of the request service IDs, a tagindicating the parameter value is commonly provided to generate theintegrated inquiry information and the integrated reply information.This configuration can be modified such as shown in FIGS. 68 and 69.That is, regardless of whether the parameters have the same values, theparameter values may be described for every request service ID.

What is claimed is:
 1. An image processing device configured to apply aspecific service from among a plurality of services provided by one ormore servers, at least one of the one or more servers includinginformation corresponding to a list of the plurality of servicesprovided by the one or more servers, the image processing devicecomprising: a display unit; an operation unit; an image processing unitconfigured to perform an imaging process; a processor; and a memorystoring instructions that, when executed by the processor, cause theimage processing device to perform: transmitting a request for the listof the plurality of services; receiving the list of the plurality ofservices from the at least one of the one or more servers aftertransmitting the request for the list of the plurality of services;displaying the received list of the plurality of services on the displayunit; obtaining, through the operation unit, a selection of the specificservice from among the plurality of services in the list displayed onthe display unit; transmitting selection information indicating that theselection of the specific service is obtained through the operationunit, to one of the one or more servers; receiving, after transmittingthe selection information, setting window information from the one ofthe one or more servers, the setting window information includingdisplay information, the display information being used for displaying,on the display unit, a setting window on which one or more setting itemsare set for using the specific service; displaying the setting window onthe display unit in accordance with the display information included inthe received setting window information; transmitting settinginformation set on the setting window to a specific server of the one ormore servers; and causing the image processing unit to perform theimaging process relating to the specific service in accordance with aninstruction from the specific server, the image process including atleast one of a scanning process and a printing process.
 2. The imageprocessing device according to claim 1, wherein the one or more settingitems include a plurality of setting items, and wherein the displayinformation includes first display information and second displayinformation, the first display information being used for displaying, onthe display unit, a first setting window on which a first setting itemof the plurality of setting items is set, the second display informationbeing used for displaying, on the display unit, a second setting windowon which a second setting item of the plurality of setting items is set,the second setting item being different from the first setting item. 3.The image processing device according to claim 2, wherein the pluralityof setting items is included in a single setting file.
 4. The imageprocessing device according to claim 3, wherein the first setting itemis described between a first pair of tags both including a firstcharacter string, wherein the second setting item is described between asecond pair of tags both including a second character string, andwherein the instructions, when executed by the processor, cause theimage processing device to perform: extracting the first setting itemwhich is a setting described between the first pair of tags, and thesecond setting item which is a setting item described between the secondpair of tags; and displaying a window including the first setting itemand the second setting item on the display unit.
 5. The image processingdevice according to claim 2, further comprising a storage unit, whereinthe instructions, when executed by the processor, cause the imageprocessing device to perform: storing the received setting windowinformation to the storage unit; acquiring the second displayinformation from the storage unit in response to the first setting itembeing set on the displayed first setting window through the operationunit; displaying, on the display unit, the second setting window insteadof the first setting window in accordance with the acquired seconddisplay information; and transmitting the setting information set on thefirst setting window and the second setting window to the specificserver.
 6. The image processing device according to claim 2, wherein theinstructions, when executed by the processor, cause the image processingdevice to perform: acquiring a request for specification informationrepresenting specifications of the image processing device from thespecific server; transmitting the specification information to thespecific server; and receiving, after transmitting the specificationinformation, the first display information generated based on thespecification information from the specific server.
 7. The imageprocessing device according to claim 1, wherein the instructions, whenexecuted by the processor, cause the image processing device to perform:receiving the setting window information from a first server of the oneor more servers in response to obtaining a selection of a first servicefrom among the plurality of services; and receiving the setting windowinformation from a second server of the one or more servers in responseto obtaining a selection of a second service from among the plurality ofservices.
 8. The image processing device according to claim 1 furthercomprising a scanning unit configured to execute the scanning processand a printing unit configured to execute the printing process, whereinthe instructions, when executed by the processor, cause the imageprocessing device to perform: controlling the scanning process of thescanning unit; transmitting image data scanned by the scanning unit tothe specific server; receiving processed image data from the specificserver, the processed image data being the image data processed by thespecific server; and causing the printing unit to execute a printingprocess based on the processed image data.
 9. A server configured toprovide a plurality of services to an image processing device, theserver comprising: a processor; and a memory storing instructions that,when executed by the processor, cause the server to perform: receiving arequest for a list of the plurality of services; transmitting the listof the plurality of services to the image processing device afterreceiving the request for the list of the plurality of services;receiving, after a selection of a specific service from among theplurality of services has been obtained by the image processing device,selection information from the image processing device, the selectioninformation indicating that the selection of the specific service isobtained; and transmitting, after receiving the selection information,setting window information to the image processing device, the settingwindow information including display information, the displayinformation being used for displayingva setting window on which one ormore setting items are set for using the specific service.